Update index.md

Author: Allan-Nava

docs/index.md

@@ -11,3 +11,15 @@ last_modified_date: 2023-05-15T12:00:00+0000
 
 A powerful golang sdk library for interacting with the Bard API easily
 
+### Authentication
+
+1. Visit https://bard.google.com/
+2. F12 for console
+3. Session: Application → Cookies → Copy the value of __Secure-1PSID cookie.
+
+
+### Contributing
+We welcome contributions to this project. Please see the [contributing guidelines](https://github.com/Allan-Nava/go-bard/blob/master/CONTRIBUTING.md) for more information.
+
+### License
+This project is licensed under the MIT License, Version 2.0. See the [LICENSE](https://github.com/Allan-Nava/go-bard/blob/master/LICENSE) file for more information.