Document the Porting Embed (#6)

- Adds docs and usage guides for the porting embed
- Adds some type exports

README.md

@@ -1,6 +1,6 @@
 # Gigs Embeds for JavaScript (Web)
 
-Gigs Embeds for JavaScript (Web)
+Embeddable prebuilt and highly customizable UI components to use in your own JavaScript apps for web.
 
 > [!NOTE]
 > This library is currently under development.
@@ -11,9 +11,31 @@ Gigs Embeds for JavaScript (Web)
 npm install @gigs/gigs-embeds-js
 ```
 
+## Getting started
+
+To use Gigs Embeds, you need:
+
+1. A Gigs project
+2. A Gigs API Key
+3. A server to create an [authenticated Connect Session](https://developers.gigs.com/docs/api/cdb1438ed4da9-creating-connect-sessions)
+
+> [!TIP]
+> Your not yet a Gigs customer? [Get in touch](https://gigs.com/contact) to discuss the next steps!
+
+## How it works
+
+Using a Gigs Embed needs 2 parts:
+
+- Your server which authenticates the current user and creates a Connect Session. Can be an API endpoint or passed otherwise from your server to your client. Our developer documentation has a [guide on Creating Connect Sessions](https://developers.gigs.com/docs/api/cdb1438ed4da9-creating-connect-sessions).
+- Your client which uses the Connect Session to initialize the Embed, which makes requests directly to the Gigs API in the scope of your user. The client-side use is explained below.
+
+When using Connect Sessions with Gigs Embeds, you do not redirect to the session's `url`. Instead you initialize the embed with the full session object.
+
+Additionally, you can subscribe to [Webhooks](https://developers.gigs.com/docs/api/441a2e9e7811d-events-and-webhooks) to get a verified outcome of a user's interaction, like when they completed a number porting. The Embeds are also returning the outcome of a user's interaction, but you should use Webhooks for mission-critical processes like updating a record in your database based on the outcome.
+
 ## Usage
 
-TBD
+- [Porting Embed](docs/porting-embed.md)
 
 ## Contributing
 

docs/README.md

@@ -0,0 +1,4 @@
+# Docs
+
+- [README](README.md)
+  - [Porting Embed](docs/porting-embed.md)