Update build.yml

.github/workflows/build.yml

@@ -8,8 +8,8 @@ jobs:
     steps: 
     -  uses: actions/checkout@v2
 
-    - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1
+    -  name: Set up Docker Buildx
+       uses: docker/setup-buildx-action@v1
 
     -  name: Docker NGINX build
        uses: docker/build-push-action@v2
@@ -18,7 +18,7 @@ jobs:
           file: nginx/Dockerfile
           push: false
           tags: kowhai/ckan-docker-nginx:testing-only
-          
+
     #-  name: Docker postgres build
     #   run: |
     #     docker build ./postgresql -t kowhai/ckan-docker-postgresql:testing-only