workflow updated

Author: Utkarsh Mishra

.github/workflows/build.yml

@@ -0,0 +1,16 @@
+name: Greetings
+
+on: [pull_request, issues]
+
+jobs:
+  greeting:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+    steps:
+      - uses: actions/first-interaction@v1
+        with:
+          repo-token: ${{ secrets.COOL }}
+          issue-message: "Thank you for raising this issue🎉🎈"
+          pr-message: "Thank you for sending the PR🎈🎉✨"