Update openedx_webhooks/templates/github_community_pr_comment.md.j2

Co-authored-by: Feanil Patel <[email protected]>

openedx_webhooks/templates/github_community_pr_comment.md.j2

@@ -89,7 +89,7 @@ If you'd like to get more details on all aspects of the review process for open
 - [Pull Request Status Guide](https://docs.openedx.org/en/latest/developers/references/developer_guide/process/pull-request-statuses.html)
 - [Making changes to your pull request](https://docs.openedx.org/en/latest/documentors/how-tos/make_changes_to_your_pull_request.html)
 </details><details>
-<summary>### When can I expect my changes to be merged?</summary>
+<summary><h3>When can I expect my changes to be merged?</h3></summary>
 
 Our goal is to get community contributions seen and reviewed as efficiently as possible.