Cleanup actiotns yaml

.github/workflows/main.yaml → .github/workflows/build.yaml

@@ -10,7 +10,7 @@ jobs:
   docker_image_job:
     runs-on: ubuntu-18.04
     steps:
-      # don't need to use the actions/checkout when working with setup-buildx-action
+      # don't need to use the actions/checkout when using setup-buildx-action
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1