Clarify how to build documentation
Clarify how to build documentation

Change-Id: I09137b72f78c747b1196065585656bc87f41a9bc
Reviewed-on: http://review.couchbase.org/71919
Reviewed-by: Mark Nunberg <dab05a0fe859c5cb93882b2a75a0d613501b07be@couchbase.com>
Tested-by: Mark Nunberg <dab05a0fe859c5cb93882b2a75a0d613501b07be@couchbase.com>

couchbase/couchbase-python-client,couchbase/couchbase-python-client