Create PULL_REQUEST_TEMPLATE.md (#7)

Adding PR Template

Author: behinddwalls

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,17 @@
+<!-- Provide a summary in the Title above. Example: "Feature: add user authentication" -->
+
+## Why?
+<!-- Why is this change necessary? What is the motivation or justification? -->
+
+## What?
+<!-- What specifically is changing? Provide context for the reviewer. -->
+
+## Test Plan
+<!-- How did you test this? Provide evidence (screenshots, logs, or steps to reproduce). -->
+
+## Issue
+<!-- 
+Link the issue here. 
+- Use 'Closes #123' if this is the final fix. 
+- Use 'Part of #123' or just '#123' if the feature is still in progress. 
+-->