Add missing "tag" parameter to tag API

Closes #4877

Signed-off-by: Doug Davis <dug@us.ibm.com>
Merge pull request #8313 from duglin/Issue4877

Add missing "tag" parameter to tag API - Issue #4877
Add a note about using an open schema model

Closes: #4787

Signed-off-by: Doug Davis <dug@us.ibm.com>
Merge pull request #8316 from duglin/Issue4787

Add a note about using an open schema model - Issue #4787