chore: update GitHub branch references to use HEAD

CHANGELOG.md

@@ -216,7 +216,7 @@ All notable changes to this project will be documented in this file.
 - [PR #779](https://github.com/sendgrid/sendgrid-nodejs/pull/779): Contributing.md broken links fix. Big thanks to [Arshad Kazmi](https://github.com/arshadkazmi42) for the PR!
 - [PR #583](https://github.com/sendgrid/sendgrid-nodejs/pull/583): Fix README instructions and replace stray tab indentation by spaces. Big thanks to [Adam Reis](https://github.com/adamreisnz) for the PR!
 - [PR #522](https://github.com/sendgrid/sendgrid-nodejs/pull/522): Comma bug in name. Big thanks to [Jordan Tepper](https://github.com/HeroProtagonist) for the PR!
-- [PR #824](https://github.com/sendgrid/sendgrid-nodejs/pull/824): Fix Travis CI build failures on master. Big thanks to [Tony Ho](https://github.com/tony-ho) for the PR!
+- [PR #824](https://github.com/sendgrid/sendgrid-nodejs/pull/824): Fix Travis CI build failures on main. Big thanks to [Tony Ho](https://github.com/tony-ho) for the PR!
 - [PR #798](https://github.com/sendgrid/sendgrid-nodejs/pull/798): Update transactional-templates.md. Big thanks to [Kyle Roberts](https://github.com/kylearoberts) for the PR!
 
 ## [6.3.1] - 2018-1-18 ##
@@ -319,8 +319,8 @@ This minor version bump was due to a hiccup using `lerna` to publish to npm.
 ### BREAKING CHANGE
 - BIG, HUGE, MEGA THANKS to [Adam Reis](https://github.com/adamreisnz) for this amazing PR!!!
 - Pull #407 via #378: API Simplification
-- v6.0.0 is a complete rewrite of this SDK for all endpoints. To upgrade from v5.X and lower, we suggest you update your code based on the examples found [here](https://github.com/sendgrid/sendgrid-nodejs/blob/master/packages/mail/USE_CASES.md) for mail send and [here](https://github.com/sendgrid/sendgrid-nodejs/blob/master/packages/client/USAGE.md) for all other endpoints.
-- Please do not hesitate to [open an issue](https://github.com/sendgrid/sendgrid-nodejs/issues) if there are any challenges and/or feedback. [PRs](https://github.com/sendgrid/sendgrid-nodejs/blob/master/CONTRIBUTING.md) are also welcome.
+- v6.0.0 is a complete rewrite of this SDK for all endpoints. To upgrade from v5.X and lower, we suggest you update your code based on the examples found [here](packages/mail/USE_CASES.md) for mail send and [here](packages/client/USAGE.md) for all other endpoints.
+- Please do not hesitate to [open an issue](https://github.com/sendgrid/sendgrid-nodejs/issues) if there are any challenges and/or feedback. [PRs](CONTRIBUTING.md) are also welcome.
 
 ## [5.2.2] - 2017-08-14 ##
 ### Fix
@@ -474,7 +474,7 @@ That is, in both cases, error.response is present
 ## [4.0.2] - 2016-08-24 ##
 ### Added
 - Table of Contents in the README
-- Added a [USE_CASES.md](https://github.com/sendgrid/sendgrid-nodejs/blob/master/USE_CASES.md) section, with the first use case example for transactional templates
+- Added a [USE_CASES.md](USE_CASES.md) section, with the first use case example for transactional templates
 
 ## [4.0.1] - 2016-08-02 ##
 ### Fixed
@@ -503,7 +503,7 @@ That is, in both cases, error.response is present
 
 ## [3.0.11] - 2016-07-26 ##
 ### Added
-- [Troubleshooting](https://github.com/sendgrid/sendgrid-python/blob/master/TROUBLESHOOTING.md) section
+- [Troubleshooting](TROUBLESHOOTING.md) section
 
 ## [3.0.10] - 2016-07-23
 ### Fixed

CONTRIBUTING.md

@@ -63,7 +63,7 @@ We welcome direct contributions to the sendgrid-nodejs code base. Thank you!
 ##### Prerequisites #####
 
 - Node.js version 6, 8 or >=10
-- Please see [package.json](https://github.com/sendgrid/sendgrid-nodejs/tree/master/package.json)
+- Please see [package.json](HEAD/package.json)
 
 ##### Initial setup: #####
 
@@ -104,12 +104,12 @@ node example.js
 <a name="understanding-the-codebase"></a>
 ## Understanding the Code Base
 
-This repo is organized as a monorepo with the packages residing in the `./packages` directory. Please see the root [README.md](https://github.com/sendgrid/sendgrid-nodejs/blob/master/README.md) for details.
+This repo is organized as a monorepo with the packages residing in the `./packages` directory. Please see the root [README.md](HEAD/README.md) for details.
 
 <a name="codebase-overview"></a>
 ## Codebase Overview
 
-This repo is subdivided into 6 main [packages](https://github.com/sendgrid/sendgrid-nodejs/tree/master/packages). Each package has its dependencies (internal or external) and its source code in the `src` folder. Each package also has its isolated README files, use cases, and usage.md files.
+This repo is subdivided into 6 main [packages](HEAD/packages). Each package has its dependencies (internal or external) and its source code in the `src` folder. Each package also has its isolated README files, use cases, and usage.md files.
 
 To install a particular packages' dependencies.
 ```bash

README.md

@@ -1,11 +1,11 @@
-![Twilio SendGrid Logo](https://github.com/sendgrid/sendgrid-python/raw/master/twilio_sendgrid_logo.png)
+![Twilio SendGrid Logo](twilio_sendgrid_logo.png)
 
-[![BuildStatus](https://travis-ci.org/sendgrid/sendgrid-nodejs.svg?branch=master)](https://travis-ci.org/sendgrid/sendgrid-nodejs)
+[![BuildStatus](https://travis-ci.org/sendgrid/sendgrid-nodejs.svg?branch=main)](https://travis-ci.org/sendgrid/sendgrid-nodejs)
 [![npm version](https://badge.fury.io/js/%40sendgrid%2Fclient.svg)](https://www.npmjs.com/org/sendgrid)
 [![Email Notifications Badge](https://dx.sendgrid.com/badge/nodejs)](https://dx.sendgrid.com/newsletter/nodejs)
 [![Twitter Follow](https://img.shields.io/twitter/follow/sendgrid.svg?style=social&label=Follow)](https://twitter.com/sendgrid)
 [![GitHub contributors](https://img.shields.io/github/contributors/sendgrid/sendgrid-nodejs.svg)](https://github.com/sendgrid/sendgrid-nodejs/graphs/contributors)
-[![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/sendgrid/sendgrid-nodejs/blob/master/LICENSE.md)
+[![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE.md)
 [![Open Source Helpers](https://www.codetriage.com/sendgrid/sendgrid-nodejs/badges/users.svg)](https://www.codetriage.com/sendgrid/sendgrid-nodejs)
 
 [Twilio SendGrid Docs](https://sendgrid.com/docs/index.html)
@@ -14,9 +14,9 @@
 
 **This library allows you to quickly and easily use the Twilio SendGrid Web API v3 via Node.js.**
 
-We want this library to be community-driven, and Twilio SendGrid led. We need your help to realize this goal. To help make sure we are building the right things in the right order, we ask that you create [issues](https://github.com/sendgrid/sendgrid-nodejs/issues) and [pull requests](https://github.com/sendgrid/sendgrid-nodejs/blob/master/CONTRIBUTING.md) or merely upvote or comment on existing issues or pull requests.
+We want this library to be community-driven, and Twilio SendGrid led. We need your help to realize this goal. To help make sure we are building the right things in the right order, we ask that you create [issues](https://github.com/sendgrid/sendgrid-nodejs/issues) and [pull requests](CONTRIBUTING.md) or merely upvote or comment on existing issues or pull requests.
 
-For updates to this library, see our [CHANGELOG](https://github.com/sendgrid/sendgrid-nodejs/blob/master/CHANGELOG.md) and [releases](https://github.com/sendgrid/sendgrid-nodejs/releases).
+For updates to this library, see our [CHANGELOG](CHANGELOG.md) and [releases](https://github.com/sendgrid/sendgrid-nodejs/releases).
 
 Subscribe to our email [release notifications](https://dx.sendgrid.com/newsletter/nodejs) to receive emails about releases and breaking changes.
 
@@ -38,19 +38,19 @@ We appreciate your continued support, thank you!
 
 This library is broken up into several packages as a monorepo so that you only need to install the packages necessary for your use case. This README contains information about all packages. For examples on how to get started quickly, head over to the READMEs of each package (linked and described below), which includes detailed examples.
 
-* **[@sendgrid/mail](https://github.com/sendgrid/sendgrid-nodejs/tree/master/packages/mail) - if you just want to send email**
-* **[@sendgrid/client](https://github.com/sendgrid/sendgrid-nodejs/tree/master/packages/client) - to use all other [Twilio SendGrid v3 Web API endpoints](https://sendgrid.com/docs/API_Reference/api_v3.html)**
+* **[@sendgrid/mail](packages/mail) - if you just want to send email**
+* **[@sendgrid/client](packages/client) - to use all other [Twilio SendGrid v3 Web API endpoints](https://sendgrid.com/docs/API_Reference/api_v3.html)**
 
 
-* [@sendgrid/inbound-mail-parser](https://github.com/sendgrid/sendgrid-nodejs/tree/master/packages/inbound-mail-parser) - help with parsing the Twilio SendGrid Inbound Parse API
-* [@sendgrid/contact-importer](https://github.com/sendgrid/sendgrid-nodejs/tree/master/packages/contact-importer) - help with importing contacts into the ContactDB
-* [@sendgrid/helpers](https://github.com/sendgrid/sendgrid-nodejs/tree/master/packages/helpers) - a collection of classes and helpers used internally by the above packages
+* [@sendgrid/inbound-mail-parser](packages/inbound-mail-parser) - help with parsing the Twilio SendGrid Inbound Parse API
+* [@sendgrid/contact-importer](packages/contact-importer) - help with importing contacts into the ContactDB
+* [@sendgrid/helpers](packages/helpers) - a collection of classes and helpers used internally by the above packages
 
 <a name="announcements"></a>
 # Announcements
-**NEW:** **BREAKING CHANGE:** Please see the [Twilio SendGrid Node.js Migration Guide 6.X.X -> 7.X.X](https://github.com/sendgrid/sendgrid-nodejs/blob/master/docs/migration-guides/migrating-from-version-6-to-7.md) for details.
+**NEW:** **BREAKING CHANGE:** Please see the [Twilio SendGrid Node.js Migration Guide 6.X.X -> 7.X.X](docs/migration-guides/migrating-from-version-6-to-7.md) for details.
 
-All updates to this library are documented in our [CHANGELOG](https://github.com/sendgrid/sendgrid-nodejs/blob/master/CHANGELOG.md) and [releases](https://github.com/sendgrid/sendgrid-nodejs/releases). You may also subscribe to email [release notifications](https://dx.sendgrid.com/newsletter/nodejs) for releases and breaking changes.
+All updates to this library are documented in our [CHANGELOG](CHANGELOG.md) and [releases](https://github.com/sendgrid/sendgrid-nodejs/releases). You may also subscribe to email [release notifications](https://dx.sendgrid.com/newsletter/nodejs) for releases and breaking changes.
 
 <a name="roadmap"></a>
 # Roadmap
@@ -60,17 +60,17 @@ If you are interested in the future direction of this project, please take a loo
 <a name="contribute"></a>
 # How to Contribute
 
-We encourage contribution to our libraries (you might even score some nifty swag), please see our [CONTRIBUTING](https://github.com/sendgrid/sendgrid-nodejs/blob/master/CONTRIBUTING.md) guide for details.
+We encourage contribution to our libraries (you might even score some nifty swag), please see our [CONTRIBUTING](CONTRIBUTING.md) guide for details.
 
-* [Feature Request](https://github.com/sendgrid/sendgrid-nodejs/tree/master/CONTRIBUTING.md#feature_request)
-* [Bug Reports](https://github.com/sendgrid/sendgrid-nodejs/tree/master/CONTRIBUTING.md#submit_a_bug_report)
-* [Improvements to the Codebase](https://github.com/sendgrid/sendgrid-nodejs/tree/master/CONTRIBUTING.md#improvements_to_the_codebase)
-* [Review Pull Requests](https://github.com/sendgrid/sendgrid-nodejs/blob/master/CONTRIBUTING.md#code-reviews)
+* [Feature Request](CONTRIBUTING.md#feature_request)
+* [Bug Reports](CONTRIBUTING.md#submit_a_bug_report)
+* [Improvements to the Codebase](CONTRIBUTING.md#improvements_to_the_codebase)
+* [Review Pull Requests](CONTRIBUTING.md#code-reviews)
 
 <a name="troubleshooting"></a>
 # Troubleshooting
 
-Please see our [troubleshooting guide](https://github.com/sendgrid/sendgrid-nodejs/blob/master/TROUBLESHOOTING.md) for common library issues.
+Please see our [troubleshooting guide](TROUBLESHOOTING.md) for common library issues.
 
 <a name="about"></a>
 # About
@@ -83,4 +83,4 @@ If you've instead found a bug in the library or would like new features added, g
 
 <a name="license"></a>
 # License
-[The MIT License (MIT)](https://github.com/sendgrid/sendgrid-nodejs/blob/master/LICENSE.md)
+[The MIT License (MIT)](LICENSE.md)

TROUBLESHOOTING.md

@@ -66,12 +66,12 @@ Click the "Clone or download" green button in [GitHub](https://github.com/sendgr
 <a name="error"></a>
 ## Error Messages
 
-To read the error message returned by SendGrid's API, please see [this example](https://github.com/sendgrid/sendgrid-nodejs/blob/master/packages/mail/USE_CASES.md#success-failure-errors).
+To read the error message returned by SendGrid's API, please see [this example](packages/mail/USE_CASES.md#success-failure-errors).
 
 <a name="versions"></a>
 ## Versions
 
-We follow the MAJOR.MINOR.PATCH versioning scheme as described by [SemVer.org](http://semver.org). Therefore, we recommend that you always pin (or vendor) the particular version you are utilizing with your code and never auto-update to the latest version. Especially when there is a MAJOR point release since that is guaranteed to be a breaking change. Changes are documented in the [CHANGELOG](https://github.com/sendgrid/sendgrid-nodejs/blob/master/CHANGELOG.md) and [releases](https://github.com/sendgrid/sendgrid-nodejs/releases) section.
+We follow the MAJOR.MINOR.PATCH versioning scheme as described by [SemVer.org](http://semver.org). Therefore, we recommend that you always pin (or vendor) the particular version you are utilizing with your code and never auto-update to the latest version. Especially when there is a MAJOR point release since that is guaranteed to be a breaking change. Changes are documented in the [CHANGELOG](CHANGELOG.md) and [releases](https://github.com/sendgrid/sendgrid-nodejs/releases) section.
 
 <a name="environment"></a>
 ## Environment Variables and Your SendGrid API Key

USAGE.md

@@ -3,11 +3,11 @@
 This library is broken up into several packages as a monorepo so that you only need to install the packages necessary for your use case. 
 This USAGE.md contains information about all packages. For examples on how to get started quickly, head over to the READMEs of each package (linked and described below), which includes detailed examples.
 
-* [@sendgrid/mail](https://github.com/sendgrid/sendgrid-nodejs/tree/master/packages/mail) - if you just want to send email
-* [@sendgrid/client](https://github.com/sendgrid/sendgrid-nodejs/tree/master/packages/client) - to use all other [SendGrid v3 Web API endpoints](https://sendgrid.com/docs/API_Reference/api_v3.html)
-* [@sendgrid/inbound-mail-parser](https://github.com/sendgrid/sendgrid-nodejs/tree/master/packages/inbound-mail-parser) - help with parsing the SendGrid Inbound Parse API
-* [@sendgrid/contact-importer](https://github.com/sendgrid/sendgrid-nodejs/tree/master/packages/contact-importer) - help with importing contacts into the ContactDB
-* [@sendgrid/helpers](https://github.com/sendgrid/sendgrid-nodejs/tree/master/packages/helpers) - a collection of classes and helpers used internally by the above packages
+* [@sendgrid/mail](packages/mail) - if you just want to send email
+* [@sendgrid/client](packages/client) - to use all other [SendGrid v3 Web API endpoints](https://sendgrid.com/docs/API_Reference/api_v3.html)
+* [@sendgrid/inbound-mail-parser](packages/inbound-mail-parser) - help with parsing the SendGrid Inbound Parse API
+* [@sendgrid/contact-importer](packages/contact-importer) - help with importing contacts into the ContactDB
+* [@sendgrid/helpers](packages/helpers) - a collection of classes and helpers used internally by the above packages
 
 
 # Documentation

docs/examples/webhooks-docker/CONTRIBUTING.md

@@ -50,7 +50,7 @@ Before you decide to create a new issue, please try the following:
 
 ### Please use our Bug Report Template
 
-In order to make the process easier, we've included a [sample bug report template](https://github.com/sendgrid/sendgrid-nodejs/blob/master/ISSUE_TEMPLATE.md) (borrowed from [Ghost](https://github.com/TryGhost/Ghost/)). The template uses [GitHub flavored markdown](https://help.github.com/articles/github-flavored-markdown/) for formatting.
+In order to make the process easier, we've included a [sample bug report template](../../../ISSUE_TEMPLATE.md) (borrowed from [Ghost](https://github.com/TryGhost/Ghost/)). The template uses [GitHub flavored markdown](https://help.github.com/articles/github-flavored-markdown/) for formatting.
 
 <a name="improvements-to-the-codebase"></a>
 ## Improvements to the Codebase
@@ -64,7 +64,7 @@ We welcome direct contributions to the sendgrid-nodejs code base. Thank you!
 ##### Prerequisites #####
 
 - Node.js versions 6, 8, or >=10
-- Please see [package.json](https://github.com/sendgrid/sendgrid-nodejs/tree/master/package.json)
+- Please see [package.json](../../../package.json)
 
 ##### Initial setup: #####
 
@@ -78,7 +78,7 @@ npm install
 
 First, get your free Twilio SendGrid account [here](https://sendgrid.com/free?source=sendgrid-nodejs).
 
-You will need to setup the following environment to use the Twilio SendGrid examples in the [README.md](https://github.com/sendgrid/sendgrid-nodejs/blob/master/README.md), [USAGE.md](https://github.com/sendgrid/sendgrid-nodejs/blob/master/USAGE.MD) and [USE_CASES.md](https://github.com/sendgrid/sendgrid-nodejs/blob/master/USE_CASES.md) files:
+You will need to setup the following environment to use the Twilio SendGrid examples in the [README.md](../../../README.md), [USAGE.md](../../../USAGE.MD) and [USE_CASES.md](../../../USE_CASES.md) files:
 
 ```bash
 echo "export SENDGRID_API_KEY='YOUR_API_KEY'" > sendgrid.env
@@ -105,12 +105,12 @@ node example.js
 <a name="understanding-the-codebase"></a>
 ## Understanding the Code Base
 
-This repo is organized as a monorepo with the packages residing in the `./packages` directory. Please see the root [README.md](https://github.com/sendgrid/sendgrid-nodejs/blob/master/README.md) for details.
+This repo is organized as a monorepo with the packages residing in the `./packages` directory. Please see the root [README.md](../../../README.md) for details.
 
 <a name="codebase-overview"></a>
 ## Codebase Overview
 
-This repo is subdivided in 6 main [packages](https://github.com/sendgrid/sendgrid-nodejs/tree/master/packages). Each package has its own dependencies (internal or external) and its own source code in the `src` folder. Each package also has its isolated README files, use cases and usage.md files.
+This repo is subdivided in 6 main [packages](../../../packages). Each package has its own dependencies (internal or external) and its own source code in the `src` folder. Each package also has its isolated README files, use cases and usage.md files.
 
 To install a particular packages' dependencies.
 ```bash
@@ -157,7 +157,7 @@ Generally, we follow the style guidelines as suggested by the official language.
 Please run your code through:
 
 - [ESLint](http://eslint.org/) with the standard style guide.
-- [esdoc](https://github.com/sendgrid/sendgrid-nodejs/blob/master/USAGE.md) to check the documentation coverage of your added code.
+- [esdoc](../../../USAGE.md) to check the documentation coverage of your added code.
 
 ## Creating a Pull Request<a name="creating-a-pull-request"></a>
 
@@ -202,7 +202,7 @@ Please run your code through:
 5. Locally merge (or rebase) the upstream development branch into your topic branch:
 
    ```bash
-   git pull [--rebase] upstream master
+   git pull [--rebase] upstream main
    ```
 
 6. Push your topic branch up to your fork:
@@ -212,7 +212,7 @@ Please run your code through:
    ```
 
 7. [Open a Pull Request](https://help.github.com/articles/using-pull-requests/)
-    with a clear title and description against the `master` branch. All tests must be passing before we will review the PR.
+    with a clear title and description against the `main` branch. All tests must be passing before we will review the PR.
 
 <a name="code-reviews"></a>
 ## Code Reviews