message: Fix broken codeb lock style
  Fix broken code block style in docs
diff: @@ -151,7 +151,7 @@ by using a volume.
  By default the Docker image will run as the ``envoy`` user created at build time.
  The ``uid`` and ``gid`` of this user can be set at runtime using the ``ENVOY_UID`` and ``ENVOY_GID``
  -environment variables. This can be done, for example, on the Docker command line:
  +environment variables. This can be done, for example, on the Docker command line::
  $ docker run -d --name envoy -e ENVOY_UID=777 -e ENVOY_GID=777 -p 9901:9901 -p 10000:10000 envoy:v1
  