Fix typo in pull request template header

Author: AritraDey-Dev

.github/workflows/pull_request_template.md

@@ -1,4 +1,4 @@
-### Description of Changes
+### Description of Change
 - [ ] I have tested my changes on **both desktop and mobile views**.
 - [ ] Screenshots are attached below for desktop and mobile layouts.
 
@@ -18,4 +18,4 @@
 ### How to Test Responsiveness
 - Use your browser’s **Developer Tools** (e.g., Chrome/Firefox) to toggle mobile views:
   1. Right-click → **Inspect** → Click the **Device Toolbar** icon.
-  2. Select a mobile device (e.g., iPhone 12) or set a custom screen size.
+  2. Select a mobile device (e.g., iPhone 12) or set a custom screen size.