feat: add comment workflow

.github/workflows/lint-pr.yml

@@ -0,0 +1,23 @@
+name: lint pr
+
+on:
+  pull_request:
+    branches:
+      - main
+  pull_request_target:
+    types: 
+      - edited
+
+jobs:
+  ruby_lint:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Add comment
+        uses: elasticspoon/actions-comment-pull-request
+        id: comment_pr
+        with:
+          message: |
+            Hello world ! :wave:
+