Fix code blocks in Docker README

roles/docker/README.rst

@@ -13,7 +13,8 @@ Role Variables
 
 Variables can be found in the `default vars <defaults/main.yml>`_
 
-..  codeblock:: yaml
+.. code-block:: yaml
+
    docker_edition: 'ce'
    docker_dependencies:
      - "apt-transport-https"
@@ -30,13 +31,15 @@ Variables can be found in the `default vars <defaults/main.yml>`_
 
 Defines Docker flavor to install, dependencies and the packages to install. We don't install the docker-compose binary since compose is include in the Docker command line.
 
-..  codeblock:: yaml
+.. code-block:: yaml
+
    docker_users:
      - "syrell"
 
 A list of UNIX users to add to the docker group.
 
-..  codeblock:: yaml
+.. code-block:: yaml
+
    docker_daemon_options:
      docker_daemon_options:
        log-opts:
@@ -44,7 +47,8 @@ A list of UNIX users to add to the docker group.
 
 A dictionary listing options to add to the Docker daemon.
 
-..  codeblock:: yaml
+.. code-block:: yaml
+
    docker_apt_release_channel: stable
    docker_repo_url: https://download.docker.com/linux
    docker_apt_arch: amd64
@@ -61,7 +65,8 @@ None.
 Example Playbook
 ----------------
 
-..  codeblock:: yaml
+.. code-block:: yaml
+
    - name: Install docker
      hosts: all
      roles: