chore: add usage sections and notes to README.md

README.md

@@ -7,9 +7,32 @@
 </div>
 <hr>
 
+> [!NOTE]
+> Support for other mod loaders is not planned. PRs implementing such support will not be accepted, please fork this project instead.
+
+> [!WARNING]
+> This mod does not provide support for standard permission systems, and by default only verifies permissions by operator status (i.e. commands can only be run by operators).
+
+## Supported versions
+
+| Version | Support level |
+| ------- | ------------- |
+| 1.20.1  | ✅ Fully supported |
+| *       | ❌ Not supported |
+
 ## Installing
 
-Download the latest release from the releases tab or go to the [latest release directly](https://code.lilyvex.dev/lily/oauth-fabric/releases/latest), then put it in your Fabric server's `mods` directory.
+Download the latest release from the releases tab or go to the [latest release directly](https://code.lilyvex.dev/lily/oauth-fabric/releases/latest), you may optionally choose to build from source, then put it in your Fabric server's `mods` directory.
+
+## Usage
+
+On initial load, this mod will create a commented configuration file. Edit the created file to contain the correct credentials for your OAuth provider, then restart the server.
+
+Players who are not registered will be kicked on join and given a link to the OAuth provider, where they can login to register for the server.
+
+Each new login with create a new session which will expire after a set period of time (usually defined by your OAuth provider).
+
+Use the `/oauth` command to see a list of all available commands.
 
 ## Building from source
 
@@ -30,4 +53,4 @@ gradlew.bat build
 
 ## Contributing
 
-Fork this repository and create a branch for your changes, then create a pull request for the `main` branch with a "why", "what", and "how" to explain your changes.
+Fork this repository and create a branch for your changes, then create a pull request for the `dev` branch with a "why", "what", and "how" to explain your changes.