some cosmetic changes

galaxy.yml

@@ -34,7 +34,7 @@ license_file: 'LICENSE.md'
 
 # A list of tags you want to associate with the collection for indexing/searching. A tag name has the same character
 # requirements as 'namespace' and 'name'
-tags: [ 'tools', 'linux' ]
+tags: ['tools', 'linux']
 
 # Collections that this collection requires to be installed for it to be usable. The key of the dict is the
 # collection label 'namespace.name'. The value is a version range

roles/docker/handlers/main.yml

@@ -1,18 +1,17 @@
 ---
-# TODO this is yet unused
 - name: test docker setup
   become: true
   community.docker.docker_container:
-    name: test-docker
-    image: hello-world
     state: started
+    name: hello-world
+    image: hello-world
   register: docker_test
   when: docker_install is changed
 
 - name: remove test container
   become: true
   community.docker.docker_container:
-    name: test-docker
-    image: hello-world
     state: absent
-  when: docker_install is changed
+    name: hello-world
+    image: hello-world
+  when: docker_test is changed