[demo] test jobs

.github/workflows/test.yml

@@ -0,0 +1,23 @@
+name: my action
+on: pull_request_target
+
+jobs:
+  pr-check: 
+    name: Check PR
+    runs-on: ubuntu-latest
+    steps:
+      - name: Setup Action
+        uses: actions/checkout@v2
+        with:
+          ref: ${{github.event.pull_request.head.ref}}
+          repository: ${{github.event.pull_request.head.repo.full_name}}
+      - name: Setup Node
+        uses: actions/setup-node@v1
+        with:
+          node-version: 12.x
+      - name: Install dependencies
+        run: npm install
+      - name: Run tests
+        run: echo $SOME_SECRET
+        env:
+          SOME_SECRET: ${{ secrets.API_BASE_URL }}