add actions/checkout@v2 as first step (#284)

kkr16 · web-flow · commit 91a24f87870a · 2022-01-27T14:27:38.000-05:00
diff --git a/README.md b/README.md
@@ -162,6 +162,7 @@ jobs:
       id-token: 'write'
 
     steps:
+    - uses: actions/checkout@v2
     - id: 'auth'
       uses: 'google-github-actions/auth@v0'
       with:
