Docs/api overview (#1366)

* New `Exploring the API` section

Also some minor corrections to the first part

* Minor corrections

* Adjusting content due to `get-started` guide

* Adding `going beyond`  section to FastStore API landing article

* moving the API `get-started.md` article to `how-to-guides`

* Revert "moving the API `get-started.md` article to `how-to-guides`"

This reverts commit 2dd2a99.

* Revert "Revert "moving the API `get-started.md` article to `how-to-guides`""

This reverts commit 07b7cd0.

* Update get-started.md

* Gramarly

* Update faststore-api.md

* trying to trade files' folders

* Update faststore-api.md

apps/docs/docs/reference/api/faststore-api.md

@@ -7,26 +7,44 @@ import GraphQLExplorer from '@site/src/components/GraphQLExplorer/GraphQLExplore
 
 # FastStore API
 
-**FastStore API** is an interface between your ecommerce platform and your store's frontend. It uses **[GraphQL](https://graphql.org/)**, a query language for APIs and a runtime for fulfilling queries, to expose structured data from everyday e-commerce tasks to frontend components. With the FastStore API, it's possible to:
+**FastStore API** is an interface between your ecommerce platform and your store's frontend. It uses **[GraphQL](https://graphql.org/)**, a query language for APIs and a runtime for fulfilling queries, in order to expose structured data from everyday ecommerce tasks to frontend components.
+
+With the FastStore API, you can:
 
 - Retrieve product data.
 - Add items to the cart.
 - Apply promotions to products.
 - Filter search results.
 
-Also, thanks to a type-safe **GraphQL** protocol, the FastStore API allows developers to fetch only the strongly **typed data** needed for building robust and responsive solutions. In practice, developers can source the FastStore API to the [**Next.js**](https://nextjs.org/) or [**Gatsby**](https://www.gatsbyjs.com/) data layers and consume it on frontend components to create stores that use the [**Jamstack**](https://jamstack.org/) architecture.
+Also, thanks to a type-safe **GraphQL** protocol, the FastStore API allows developers to fetch only the strongly typed data needed for building robust and responsive solutions. In practice, developers can source the FastStore API to the [**Next.js**](https://nextjs.org/) or [**Gatsby**](https://www.gatsbyjs.com/) data layers and consume it on frontend components to create stores that use the [**Jamstack**](https://jamstack.org/) architecture.
 
 ![FastStore API usage architecture](https://vtexhelp.vtexassets.com/assets/docs/src/faststoreAPI2___58c4a9c4d23539900ef8b1cce9769288.png)
 
-:::tip
+:::info
 To learn more about GraphQL and its main concepts, visit the official [GraphQL website](https://graphql.org/).
 :::
 
-## Playground
+## Key features
+
+FastStore API is based on [**Schema.org**](https://schema.org/) and inspired by **clean architecture**.
+
+### Improved brand findability 
+
+FastStore API extends and simplifies [**Schema.org**](https://schema.org/), a set of agreed definitions for implementing structured data developed by Google, Microsoft, Yahoo, and Yandex.
+
+The Schema markup aids search engines in understanding and displaying your content in a relevant way. It may improve your brand's findability by leading your website to a higher ranking in search results and, as a result, to more clicks and interactions with your store's website. 
+
+### Flexible backend for frontend architecture
+
+The FastStore API types and resolvers use a clean architecture to tackle specific ecommerce needs. The types specified in this schema are platform agnostic and may be used to build a wide range of custom frontend solutions. For instance:
+
+1. Develop an ecommerce website with Next.js or Gatsby.
+2. Create an Apollo Server instance on Heroku.
+3. Run the executable schema in a function on Next.js.
 
-The FastStore GraphQL API allows you to query and modify your store public data in an efficient and flexible manner.
+## Playground
 
-Use the GraphQL playground in the following to test and explore the FastStore API.
+You can use the GraphQL playground below to test and explore the FastStore API.
 
 <GraphQLExplorer query="query {
           allProducts(first: 10) {
@@ -38,20 +56,10 @@ Use the GraphQL playground in the following to test and explore the FastStore AP
           }
         }"/>
 
-## Key features
-
-FastStore API is based on [**Schema.org**](https://schema.org/) and inspired by **clean architecture**.
-
-### Improved brand's findability
+You can also install the `@faststore/api` dependency in your project to start exploring the data layer by running a local server. Learn more in the [Get started guide](/references/api/get-started).
 
-FastStore API extends and simplifies [**Schema.org**](https://schema.org/), a set of agreed definitions for implementing structured data developed by Google, Microsoft, Yahoo, and Yandex.
+## Going beyond
 
-The Schema markup aids search engines in understanding and displaying your content in a relevant way. It may improve your brand's findability by leading your website to a higher ranking in search results and, consequently, to more clicks and interactions with your store's website.
+With GraphQL, you can also [Extend the FastStore API schema](/how-to-guides/faststore-api/extending-the-faststore-api).
 
-### Flexible backend for frontend architecture
-
-The FastStore API types and resolvers use a clean architecture to tackle specific ecommerce needs. The types specified in this schema are platform agnostic and may be used to build a wide range of custom frontend solutions. For instance:
-
-1. Develop an ecommerce website with Next.js or Gatsby.
-2. Create an Apollo Server instance on Heroku.
-3. Run the executable schema in a function on Next.js.
+And if you wish to use an ecommerce platform that is not yet supported, see how you can [Create inline resolvers](/how-to-guides/faststore-api/creating-resolvers).

apps/docs/docs/reference/api/get-started.md

@@ -1,8 +1,3 @@
----
-description: Install the FastStore API and start building blazing fast ecommerce websites.
-pagination_prev: null
----
-
 # Get started
 
 ## Install
@@ -15,7 +10,7 @@ yarn add @faststore/api
 
 ## Usage
 
-Explore the GraphQL data layer by running a local server of your FastStore project in your machine.
+Explore the GraphQL data layer by running a local server of your FastStore project on your machine.
 
 1. Open the terminal and change to your FastStore project directory.
 2. Install dependencies using yarn (`yarn install`),