Update PULL_REQUEST_TEMPLATE_md

Co-Authored-By: TomasRoj <42382743+TomasRoj@users.noreply.github.com>

Author: 2 people

PULL_REQUEST_TEMPLATE_md

@@ -1,7 +1,7 @@
 ### All Submissions:
 
 * [ ] Have you followed the guidelines in our Contributing document?
-* [ ] Have you checked to ensure there aren't other open [Pull Requests](../../pulls) for the same update/change?
+* [ ] Have you checked to ensure there aren't other open [Pull Requests](https://github.com/arduino/Arduino/pulls?q=) for the same update/change?
 
 <!-- You can erase any parts of this template not applicable to your Pull Request. -->