jeremy.zhang 6892dd6047 Fix api-ref for v3 volume group types
This patch is mainly to fix api-ref for v3 volume group types,
including:

1. add description and example for the API: show defaut group type
2. fix parameters: 'is_public' and 'description'
3. remove unused sample file: group-type-show-request.json

Change-Id: I29f160d8ed24473debb345b4ea91ee0545d711b1
2018-01-18 08:56:17 +00:00
..
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