Update .CONTRIBUTING.md

Co-authored-by: Erin Shaben <[email protected]>

Author: brunopgalvao

.CONTRIBUTING.md

@@ -87,8 +87,8 @@ Before making contributions, you need to set up the proper directory structure f
 
 1. Make your changes:
 
-   - Follow the [PaperMoon Style Guide](https://github.com/papermoonio/documentation-style-guide)
-   - Test your changes locally (see [Run Polkadot Docs Locally](../README.md#run-polkadot-docs-locally))
+   - Follow the [PaperMoon Style Guide](https://github.com/papermoonio/documentation-style-guide).
+   - Test your changes locally (see [Run Polkadot Docs Locally](../README.md#run-polkadot-docs-locally)).
 
 2. **Update AI Documentation**