changed examples to not use 'port' directive

docsite/rst/playbooks_roles.rst

@@ -213,8 +213,8 @@ Also, should you wish to parameterize roles, by adding variables, you can do so,
     - hosts: webservers
       roles:
         - common
-        - { role: foo_app_instance, dir: '/opt/a',  port: 5000 }
-        - { role: foo_app_instance, dir: '/opt/b',  port: 5001 }
+        - { role: foo_app_instance, dir: '/opt/a',  app_port: 5000 }
+        - { role: foo_app_instance, dir: '/opt/b',  app_port: 5001 }
 
 While it's probably not something you should do often, you can also conditionally apply roles like so::
 
@@ -284,7 +284,7 @@ a list of roles and parameters to insert before the specified role, such as the
     ---
     dependencies:
       - { role: common, some_parameter: 3 }
-      - { role: apache, port: 80 }
+      - { role: apache, appache_port: 80 }
       - { role: postgres, dbname: blarg, other_parameter: 12 }
 
 Role dependencies can also be specified as a full path, just like top level roles::