Add description of labelui plugin to plugin documentation
Add description of labelui plugin to plugin documentation

Change-Id: I28e6a66571e9b5cc5a9a7fe303fc0325a7abbc77
Signed-off-by: Edwin Kempin <b444e279ad95fdef4fbdd82c813b624595df204a@sap.com>

netroby/gerrit,renchaorevee/gerrit,TonyChai24/test,thesamet/gerrit,thesamet/gerrit,supriyantomaftuh/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,TonyChai24/test,renchaorevee/gerrit,jackminicloud/test,GerritCodeReview/gerrit,netroby/gerrit,TonyChai24/test,TonyChai24/test,MerritCR/merrit,GerritCodeReview/gerrit,Seinlin/gerrit,joshuawilson/merrit,MerritCR/merrit,Seinlin/gerrit,joshuawilson/merrit,gerrit-review/gerrit,supriyantomaftuh/gerrit,WANdisco/gerrit,jackminicloud/test,joshuawilson/merrit,WANdisco/gerrit,Seinlin/gerrit,supriyantomaftuh/gerrit,gerrit-review/gerrit,qtproject/qtqa-gerrit,MerritCR/merrit,joshuawilson/merrit,qtproject/qtqa-gerrit,quyixia/gerrit,renchaorevee/gerrit,gerrit-review/gerrit,MerritCR/merrit,GerritCodeReview/gerrit,MerritCR/merrit,pkdevbox/gerrit,pkdevbox/gerrit,Seinlin/gerrit,quyixia/gerrit,thesamet/gerrit,TonyChai24/test,thesamet/gerrit,netroby/gerrit,quyixia/gerrit,thesamet/gerrit,netroby/gerrit,WANdisco/gerrit,netroby/gerrit,pkdevbox/gerrit,joshuawilson/merrit,WANdisco/gerrit,renchaorevee/gerrit,netroby/gerrit,MerritCR/merrit,renchaorevee/gerrit,GerritCodeReview/gerrit,thesamet/gerrit,WANdisco/gerrit,gerrit-review/gerrit,gerrit-review/gerrit,GerritCodeReview/gerrit,jackminicloud/test,netroby/gerrit,Seinlin/gerrit,renchaorevee/gerrit,jackminicloud/test,supriyantomaftuh/gerrit,pkdevbox/gerrit,jackminicloud/test,supriyantomaftuh/gerrit,gerrit-review/gerrit,TonyChai24/test,qtproject/qtqa-gerrit,qtproject/qtqa-gerrit,pkdevbox/gerrit,supriyantomaftuh/gerrit,renchaorevee/gerrit,TonyChai24/test,pkdevbox/gerrit,qtproject/qtqa-gerrit,quyixia/gerrit,WANdisco/gerrit,joshuawilson/merrit,pkdevbox/gerrit,supriyantomaftuh/gerrit,quyixia/gerrit,qtproject/qtqa-gerrit,jackminicloud/test,Seinlin/gerrit,joshuawilson/merrit,quyixia/gerrit,thesamet/gerrit,quyixia/gerrit,MerritCR/merrit,MerritCR/merrit,GerritCodeReview/gerrit,WANdisco/gerrit,jackminicloud/test,joshuawilson/merrit,Seinlin/gerrit,gerrit-review/gerrit,qtproject/qtqa-gerrit