Document disabling of shallow clones

Simon Brandhof · web-flow · commit 6b0def60a4cd · 2020-05-04T17:38:52.000+02:00
diff --git a/README.md b/README.md
@@ -41,6 +41,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
+      with:
+        # Disabling shallow clone is recommended for improving relevancy of reporting
+        fetch-depth: 0
     - name: SonarCloud Scan
       uses: sonarsource/sonarcloud-github-action@master
       env:
