Add webpage as audience for profiling
Add webpage as audience for profiling

this is used by the api-site, introduced with
patch https://review.openstack.org/#/c/59852/

Change-Id: I93ebf04fccda35a0323cd4185b6b3e8b7c1777fe

openstack/openstack-doc-tools,savinash47/openstack-doc-tools,savinash47/openstack-doc-tools,openstack/openstack-doc-tools,savinash47/openstack-doc-tools