Update PR template (#76)

### What change is being made

Update PR template.

### Why this change is being made

Rewording and removal of prominent header.

### Tested

The template was applied in this PR.

GitOrigin-RevId: a5f657c22b872bc5eef60557be525a3ef2c6f8b4

Author: awoll-bdai

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,14 +1,14 @@
-# Pull Request
-
 ### What change is being made
 
-Please provide a detailed description of WHAT change is being made such
-that the reader is able to understand the change holistically.
+Please provide a detailed description of WHAT change is being made such that the reader is able to
+understand the change holistically.
 
 ### Why this change is being made
 
-Please provide the rationale behind the change and additional context like links to documents, related work or tickets.
+Please provide the rationale behind the change and additional context like links to documents,
+related work or issues.
 
 ### Tested
 
-Please provide a description how this change was tested, e.g. unit tests, hardware tests or commands you run.
+Please provide a description how this change was tested, e.g. unit tests, hardware tests or commands
+you run.