Add configuration hint to DOCKER.md
@@ -9,7 +9,11 @@ _For additional information, tutorials and documentation please visit the [coupe
Couper requires a [configuration file](https://github.com/avenga/couper/tree/master/docs#conf_file) which have to be provided on start.
See our [documentation](https://github.com/avenga/couper/tree/master/docs) how to configure _couper_.
-`docker run --rm -p 8080:8080 -v "$(pwd)":/htdocs avenga/couper`
+This image contains a basic configuration to serve files from `/htdocs` directory.
+
+```bash
+docker run --rm -p 8080:8080 -v `pwd`:/htdocs avenga/couper
+```
### Environment options
