Update greetings.yml

Added Pr message too.

.github/workflows/greetings.yml

@@ -12,4 +12,5 @@ jobs:
     - uses: actions/first-interaction@v1
       with:
         repo-token: ${{ secrets.GITHUB_TOKEN }}
-        issue-message: "Thank you for raising a issue, Hope you enjoing the open source. we try to reply or assign as soon possibe. Connect with mentor [GitHub](https://github.com/Anishkagupta04)"
+        issue-message: "Hi there! Thanks for opening this issue. We appreciate your contribution to this open-source project. We aim to respond or assign your issue as soon as possible."
+        pr-message: "Welcome to Our repository.🎊 Thank you so much for taking the time to point this out."