Workflow documentation is now in infra-manual

Replace URLs for workflow documentation to appropriate parts of the
OpenStack Project Infrastructure Manual.

Change-Id: Ic002517ad2152ceece49365f02b66e36cd5e2253

CONTRIBUTING.md

@@ -15,7 +15,7 @@ When filing an issue please fill in as many details as possible.
 ## Contributing
 
 Before contributing to the SDK you will need to get setup to [contribute within
-the OpenStack community](https://wiki.openstack.org/wiki/How_To_Contribute).
+the OpenStack community](http://docs.openstack.org/infra/manual/developers.html).
 
 Since this SDK is designed to work against an OpenStack setup you'll need an
 existing OpenStack cloud or [DevStack](http://devstack.org) for integration

README.md

@@ -52,9 +52,9 @@ Contributing
 ------------
 The code repository borrows OpenStack StackForge infrastructure.
 Please use the [recommended workflow]
-(https://wiki.openstack.org/wiki/GerritWorkflow).  If you are not a member yet,
+(http://docs.openstack.org/infra/manual/developers.html#development-workflow).  If you are not a member yet,
 please consider joining as an [OpenStack contributor]
-(https://wiki.openstack.org/wiki/HowToContribute).  If you have questions or
+(http://docs.openstack.org/infra/manual/developers.html).  If you have questions or
 comments, you can email the maintainer(s).
 
 Coding Style