feat: Update pull request template

This commit fixes the spacing issue of the pull request checklist by
changing the final checklist item. The relevant information now exists
as a sentence after the list, as well as an additional line.

The additional line, alongside a similar one added to the checklist,
direct the reader to our style guide to review specific guidance that
would otherwise be too verbose to add to the template.

Author: ADubhlaoich

.github/pull_request_template.md

@@ -21,18 +21,16 @@ Closes #ISSUE
 
 Before creating a PR, run through this checklist and mark each as complete.
 
-- [ ] I have read the [contributing guidelines](/CONTRIBUTING.md)
-- [ ] I have signed the [F5 Contributor License Agreement (CLA)](https://github.com/f5/.github/blob/main/CLA/cla-markdown.md)
-- [ ] If applicable, I have added tests that prove my fix is effective or that my feature works
-- [ ] If applicable, I have checked that any relevant tests pass after adding my changes
-- [ ] I have updated any relevant documentation ([`README.md`](/README.md) and [`CHANGELOG.md`](/CHANGELOG.md))
-- [ ] I have rebased my branch onto main
-- [ ] I will ensure my PR is targeting the main branch and pulling from my branch from my own fork
-- [ ] If the change involves:
-  - Code
-  - Anything that resembles Personally identifying information (PII)
-    - Make sure to use placeholders such as `<username>` in place of PII
-  - URLs (watch for [typosquatting](https://support.microsoft.com/en-us/topic/what-is-typosquatting-54a18872-8459-4d47-b3e3-d84d9a362eb0))
-  - Significant new/revised content
-    
-  In these cases, the change will require at least two (2) approvals before merging
+- [] I have read the [contributing guidelines](/CONTRIBUTING.md)
+- [] I have ensured that documentation content adheres to [the style guide](/templates/style-guide.md)
+- [] I have signed the [F5 Contributor License Agreement (CLA)](https://github.com/f5/.github/blob/main/CLA/cla-markdown.md)
+- [] If applicable, I have added tests that prove my fix is effective or that my feature works
+- [] If applicable, I have checked that any relevant tests pass after adding my changes
+- [] I have updated any relevant documentation ([`README.md`](/README.md) and [`CHANGELOG.md`](/CHANGELOG.md))
+- [] I have rebased my branch onto main
+- [] I will ensure my PR is targeting the main branch and pulling from my branch from my own fork
+- [] If the change involves potentially sensitive changes, I have waited for 2 approvals before merging
+
+Potentially sensitive changes include anything involving code, personally identify information (PII), live URLs or significant amounts of new or revised documentation.
+
+Please refer to [our style guide](/templates/style-guide.md) for guidance about placeholder content.