Add a category to the playbook

meta/main.yml

@@ -88,7 +88,7 @@ galaxy_info:
   # Below are all categories currently available. Just as with
   # the platforms above, uncomment those that apply to your role.
   #
-  #categories:
+  categories:
   #- cloud
   #- cloud:ec2
   #- cloud:gce
@@ -98,7 +98,7 @@ galaxy_info:
   #- database:sql
   #- development
   #- monitoring
-  #- networking
+    - networking
   #- packaging
   #- system
   #- web