Update README.md

Author: fechanique

README.md

@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: sfdx-actions/cli@v1
+      - uses: sfdx-actions/setup-sfdx@v1
         with:
           sfdx-auth-url: ${{ secrets.AUTH_SECRET }}
       - name: sfdx-test-run