fix(template): add missing close comment

Author: myugen

.github/PULL_REQUEST_TEMPLATE.md

@@ -11,6 +11,7 @@
      - ✅ Provide tests for your changes.
      - 📝 Use descriptive commit messages.
      - 📗 Update any related documentation and include any relevant screenshots.
+-->
 
 ## What type of PR is this? (check all applicable)