Create main.yml

.github/workflows/main.yml

@@ -0,0 +1,15 @@
+on:
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    steps:
+      - uses: mshick/add-pr-comment@v2
+        with:
+          message: |
+            **Hello**
+            🌏
+            !