DOC-2324: Update PR template

Author: MitchC1999

.github/pull_request_template.md

@@ -1,15 +1,16 @@
-Ticket: DOC-<num>, <ticket-title-here>.
+Ticket: DOC-<num>
+
+Site: [DOC-<num> site](http://docs-<hotfix/feature>-6-doc-<num>.staging.tiny.cloud/docs/tinymce/6/)
 
 Changes:
 * <placeholder-text>
 
 Pre-checks:
 - [ ] Branch prefixed with `feature/6/` or `hotfix/6/`
-- [ ] Changelog entry added
-- [ ] `modules/ROOT/nav.adoc` has been updated (if applicable)
-- [ ] Files has been included where required (if applicable)
-- [ ] Files removed have been deleted, not just excluded from the build (if applicable)
-- [ ] (New product features only) Release Note added
+- [ ] `modules/ROOT/nav.adoc` has been updated `(if applicable)`
+- [ ] Files has been included where required `(if applicable)`
+- [ ] Files removed have been deleted, not just excluded from the build `(if applicable)`
+- [ ] Files added for `New product features`, and included a `release note` entry.
 
 Review:
-- [ ] Documentation Team Lead has reviewed
+- [ ] Documentation Team Lead has reviewed