chore(workflows): add pull request workflow

Author: marcocesarato

.github/workflows/pr.yml

@@ -0,0 +1,12 @@
+name: Pull Request
+on: pull_request
+jobs:
+  conventional:
+    name: Conventional PR
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2-beta
+      - uses: beemojs/conventional-pr-action@v2
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}