doc fixes

cloud/openstack/os_server_volume.py

@@ -30,7 +30,7 @@ DOCUMENTATION = '''
 module: os_server_volume
 short_description: Attach/Detach Volumes from OpenStack VM's
 extends_documentation_fragment: openstack
-version_added: "1.10"
+version_added: "2.0"
 description:
    - Attach or Detach volumes from OpenStack VM's
 options:
@@ -39,11 +39,11 @@ options:
        - Should the resource be present or absent.
      choices: [present, absent]
      default: present
+     required: false
    server:
      description:
        - Name or ID of server you want to attach a volume to
      required: true
-     default: None
    volume:
      description:
       - Name or id of volume you want to attach to a server

cloud/openstack/os_subnet.py

@@ -28,7 +28,7 @@ DOCUMENTATION = '''
 module: os_subnet
 short_description: Add/Remove subnet to an OpenStack network
 extends_documentation_fragment: openstack
-version_added: "1.10"
+version_added: "2.0"
 description:
    - Add or Remove a subnet to an OpenStack network
 options:
@@ -36,6 +36,7 @@ options:
      description:
         - Indicate desired state of the resource
      choices: ['present', 'absent']
+     required: false
      default: present
    network_name:
      description:
@@ -52,6 +53,7 @@ options:
         - The CIDR representation of the subnet that should be assigned to
           the subnet.
      required: true when state is 'present'
+     default: None
    ip_version:
      description:
         - The IP version of the subnet 4 or 6

cloud/openstack/os_volume.py

@@ -28,7 +28,7 @@ DOCUMENTATION = '''
 module: os_volume
 short_description: Create/Delete Cinder Volumes
 extends_documentation_fragment: openstack
-version_added: "1.10"
+version_added: "2.0"
 description:
    - Create or Remove cinder block storage volumes
 options:
@@ -41,7 +41,6 @@ options:
      description:
         - Name of volume
      required: true
-     default: None
    display_description:
      description:
        - String describing the volume
@@ -53,7 +52,7 @@ options:
      required: false
      default: None
    image:
-     descritpion:
+     description:
        - Image name or id for boot from volume
      required: false
      default: None