Fixes to dockerfile

Fix formatting errors

Author: JoshLoecker

.github/workflows/dockerhub.yml

@@ -30,7 +30,7 @@ jobs:
     steps:
       # Checkout the repository
       - name: Checkout Repository
-      - uses: actions/checkout@v3
+        uses: actions/checkout@v3
         with:
           ref: ${ GITHUB_REF }