Update CHANGELOG and CONTRIBUTING guide

.github/CONTRIBUTING.md

@@ -4,7 +4,10 @@ Thanks for considering contributing! Please read this document to learn the vari
 
 ## Keeping the CHANGELOG up-to-date
 
-This project tries hard to adhere to [Semantic Versioning](https://semver.org/spec/v2.0.0.html), and we maintain a `CHANGELOG` with a format based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/). If your PR addresses a bug or makes any other substantial change, please be sure to add an entry under the "Unreleased" section at the top.
+This project tries hard to adhere to [Semantic Versioning](https://semver.org/spec/v2.0.0.html), and we maintain a [`CHANGELOG`](https://github.com/epwalsh/obsidian.nvim/blob/main/CHANGELOG.md) with a format based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/). 
+If your PR addresses a bug or makes any other substantial change, please be sure to add an entry under the "Unreleased" section at the top of `CHANGELOG.md`.
+Entries should always be in the form of a list item under a level-3 header of either "Added", "Fixed", "Changed", or "Removed" for the most part.
+If the corresponding level-3 header for your item does not already exist in the "Unreleased" section, you should add it.
 
 ## Formatting code
 

CHANGELOG.md

@@ -7,12 +7,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
-### Changed
+### Added
 
 - Allow user to supply an argument to `ObsidianTemplate` to select a template.
-- Renamed `command.insert_template()` to `command.template()` and split the template insert script into a separate function `util.insert_template()`.
-- Added `log_level` option to suspend notifications.
-- Added `completion.new_notes_location` to specify where newly created notes are placed in completion.
+
+### Changed
+
+- Renamed Lua function `command.insert_template()` to `command.template()` and split the template insert script into a separate function `util.insert_template()`.
+- Added `log_level` configuration option to suspend notifications.
+- Added `completion.new_notes_location` configuration option to specify where newly created notes are placed in completion.
 
 ### Fixed