Merge pull request advanced-security#202 from advanced-security/jeongsoolee09/add-pr-template

Add pull request template

Author: jeongsoolee09

.github/codeql/pull_request_template.md

@@ -0,0 +1,10 @@
+## What This PR Contributes
+
+<!-- Explain in Markdown bullet points what is covered in this PR:
+     1. Organize the bullet points in a reasonable level of hierarchy, and
+     2. Be as EXHAUSTIVE as possible. -->
+
+## Future Works
+
+<!-- Explain in Markdown bullet points what is OUT OF SCOPE of this PR.
+     Also organize them with bullet points in a reasonable of hierarchy. -->