Add more instruction in case we need to remove a pr from the queue

bert_e/templates/queue_build_failed.md

@@ -11,5 +11,21 @@ The corresponding build for the queue failed:
 - Checkout the [status page]({{ frontend_url }}).
 - Identify the failing build and review the logs.
 - If no issue is found, re-run the build.
+- If an issue is identified, checkout the steps below to remove
+  the pull request from the queue.
+
+<details>
+  <summary><b>Remove the pull request from the queue</b></summary>
+
+- Add a `/wait` comment on the pull request.
+- Click on login on the [status page]({{ frontend_url }})
+- Go into the [manage]({{ frontend_url }}/manage) page.
+- Find the option called `Rebuild the queue` and click on it.
+  This will remove the pull request from the queue.
+- Wait for the new queue to merge, then update your pull request
+  with the latest change to then work on a proper fix.
+
+</details>
+
 
 {% endblock %}