Begin to document REST api

[#79107882]
Additional documentation.

[#79107882]
Merge branch 'master' into donald_docs

  add external ip to container info
  Add FakeClient

[#79107882]

Signed-off-by: Steve Powell <spowell@pivotal.io>
Editorial changes only.

[#79107882]

Signed-off-by: Steve Powell <spowell@pivotal.io>
Merge branch 'donald_docs' into master.
[#79107882]

Signed-off-by: Steve Powell <spowell@pivotal.io>