Update .CONTRIBUTING.md

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

Author: brunopgalvao

.CONTRIBUTING.md

@@ -102,8 +102,8 @@ Before making contributions, you need to set up the proper directory structure f
 
 3. Create pull request:
 
-   - Push your branch and create a pull request
-   - Use the PR template to indicate your review preference
+   - Push your branch and create a pull request.
+   - Use the PR template to indicate your review preference.
 
 ## Fix or Improve Existing Content