CHORE: Update PR Template to auto-close tasks

Author: bewithgaurav

.github/PULL_REQUEST_TEMPLATE.MD

@@ -7,10 +7,10 @@ Only one reference is required - either GitHub issue OR ADO Work Item.
 -->
 
 <!-- mssql-python maintainers: ADO Work Item -->
-> AB#<WORK_ITEM_ID>
+> Closed AB#<WORK_ITEM_ID>
 
 <!-- External contributors: GitHub Issue -->
-> GitHub Issue: #<ISSUE_NUMBER>
+> Closes GitHub Issue: #<ISSUE_NUMBER>
 
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 ### Summary   

.gitignore

@@ -60,3 +60,6 @@ build/
 # Virtual environments
 *venv*/
 **/*venv*/
+
+# main.py - no need to track this file
+main.py