[+] Readme instructions

README.md

@@ -1,2 +1,49 @@
-# mc-auth
+# mc-auth: Python Authenticator for Minecraft with Microsoft
  
+### Installation
+
+```sh
+pip install mc-auth
+```
+
+### Usage
+
+#### 1. Create Azure Token
+
+(You can follow [this guide](https://docs.microsoft.com/en-us/azure/active-directory/develop/quickstart-register-app) for more details)
+
+1. Sign in to the [Azure Portal](https://portal.azure.com/)
+2. Click "Azure Active Directory" (the icon should look like Ramiel from EVA 🤔)
+3. Click "App registrations" on the left navigation menu
+4. Click "New registration" on top left
+5. Give it a name
+6. For "Supported account types," select "Personal MS accounts only"
+7. For "Redirect URI", select "Web" and type "http://localhost:18275"
+8. Now you should be in the overview page of your app!
+9. You should see a field "Application (client) ID", copy that somewhere
+10. Click "Certificates & secrets" on the left navbar
+11. In the "Client secrets" tab, click "New client secret"
+12. Give it a description
+13. For "Expires" select "24 months"
+14. Click "Add"
+15. There should be "Value" and "Secret ID", copy "Value"
+16. Write this in `~/.config/mc-auth/auth_config.yml`:
+
+```yaml
+ClientID: Paste the "Application (client) ID" here
+ClientSecret: Paste the "Value" you copied here
+```
+
+#### 2. Login!
+
+You can now run `mc-auth` to login! After logging in, it will create a text file `~/.config/mc-auth/mc-token.txt` containing your minecraft token.
+
+In your start script for minecraft, add this line before the `java` command:
+
+```shell
+export auth_access_token=$(< ~/.config/mc-auth/mc-token.txt)
+```
+
+#### 3. Start Minecraft!
+
+You can now start minecraft!