Update documentation to match parameter rename
Update documentation to match parameter rename

In Change-Id: If2f5e4e926bdad0ed9de639efd8f18fec27bb6a7 attributes were
renamed to parameters. This change updates the documentation to match
this.

Change-Id: Ie5d9c04fff4fa2c249a6d672ba74886507394b60

rdo-management/python-tuskarclient