Update Readme about .gitignore files (#307)

* docs: added .gitignore instructions

* Update README.md

Signed-off-by: Pushpak Chhajed <[email protected]>

* Update README.md

Signed-off-by: Pushpak Chhajed <[email protected]>

* Update README.md

* Update README.md

---------

Signed-off-by: Pushpak Chhajed <[email protected]>
Co-authored-by: Pushpak Chhajed <[email protected]>
Co-authored-by: Pushpak Chhajed <[email protected]>
Co-authored-by: Taylor Otwell <[email protected]>

Author: 3 people

README.md

@@ -35,6 +35,8 @@ Next, install the MCP server and coding guidelines:
 php artisan boost:install
 ```
 
+Feel free to add the generated MCP configuration file, guideline files (`.mcp.json`, `CLAUDE.md`, `AGENTS.md`, `junie/`, etc.) and `boost.json` configuration file to your application's `.gitignore` as these files are automatically re-generated when running `boost:install` and `boost:update`.
+
 Once Laravel Boost has been installed, you're ready to start coding with Cursor, Claude Code, or your AI agent of choice.
 
 ### Setup Your Code Editors