Added instruction to cancel previous builds.

diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index d0a97cacd377c568bf490e905d1d896ef2e2edc5..a78a0191e16724c81a284837d9b737747510e3c3 100644 (file)
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -8,6 +8,11 @@ jobs:
   build-master-docker:
     runs-on: ubuntu-latest
     steps:
+      - name: Cancel Previous Runs
+        uses: styfle/cancel-workflow-action@0.7.0
+        with:
+          access_token: ${{ github.token }}
+          
       - name: Checkout code
         uses: actions/checkout@v2