Update PR template add link contact page

Author: rianrietveld

.github/pull_request_template.md

@@ -1,10 +1,10 @@
 Thank you for your contribution to the WP Accessibility Knowledge Base.
 
-**Please note:**
-Content committed without contacting the project leads @rianrietveld or @joedolson first, will not be reviewed.
-
 The related issue number: #
 
+**Please note:**
+Content committed without [contacting the project leads](https://wpaccessibility.org/docs/contact/) first, will not be reviewed.
+
 Before submitting this PR, please make sure:
 - [ ] One of the project leads assigned this task to you.
 - [ ] You did not generate content using AI (artificial intelligence), except for translations or spelling checks.