Merge pull request #7501 from sivel/rax-dns-serial-doc

Add notes to rax_dns and rax_dns_record to recommend using serial: 1

library/cloud/rax_dns

@@ -44,6 +44,10 @@ options:
     description:
       - Time to live of domain in seconds
     default: 3600
+notes:
+  - "It is recommended that plays utilizing this module be run with C(serial: 1)
+    to avoid exceeding the API request limit imposed by the Rackspace CloudDNS
+    API"
 author: Matt Martz
 extends_documentation_fragment: rackspace
 '''

library/cloud/rax_dns_record

@@ -67,6 +67,10 @@ options:
       - SRV
       - TXT
     default: A
+notes:
+  - "It is recommended that plays utilizing this module be run with C(serial: 1)
+    to avoid exceeding the API request limit imposed by the Rackspace CloudDNS
+    API"
 author: Matt Martz
 extends_documentation_fragment: rackspace
 '''