Merge pull request #41 from revolunet/patch-1

docs: fix example

README.md

@@ -16,7 +16,7 @@ Add the following step to your workflow configuration:
 ```yml
 steps:
   - uses: actions/checkout@v2 
-  - uses: hadolint/hadolint-action@v1.5.0
+  - uses: hadolint/hadolint-action@v1.6.0
     with:
       dockerfile: Dockerfile
 ```