documentation: Elaborate on branch level Owner
documentation: Elaborate on branch level Owner

We now support branch level ownership, so describe a case of that
in the Owner category section.

Change-Id: I55bada3d07a060f30deb6afaf9ccb2249e1e944b
Signed-off-by: Shawn O. Pearce <f3ea74d906fa9fe97c1fef6bad9cb871485c7045@google.com>

ckamm/gerrit,GerritCodeReview/gerrit,midnightradio/gerrit,skurfuerst/gerrit,gracefullife/gerrit,supriyantomaftuh/gerrit,CandyShop/gerrit,basilgor/gerrit,thinkernel/gerrit,evanchueng/gerrit,CandyShop/gerrit,rtyley/mini-git-server,teamblueridge/gerrit,thesamet/gerrit,hdost/gerrit,bootstraponline-archive/gerrit-mirror,CandyShop/gerrit,MerritCR/merrit,Team-OctOS/host_gerrit,anminhsu/gerrit,evanchueng/gerrit,thesamet/gerrit,cjh1/gerrit,netroby/gerrit,jeblair/gerrit,jackminicloud/test,m1kah/gerrit-contributions,MerritCR/merrit,renchaorevee/gerrit,m1kah/gerrit-contributions,basilgor/gerrit,GerritCodeReview/gerrit,jackminicloud/test,bootstraponline-archive/gerrit-mirror,gcoders/gerrit,Distrotech/gerrit,bpollack/gerrit,gerrit-review/gerrit,supriyantomaftuh/gerrit,gerrit-review/gerrit,Overruler/gerrit,MerritCR/merrit,quyixia/gerrit,sudosurootdev/gerrit,midnightradio/gerrit,gracefullife/gerrit,Distrotech/gerrit,Team-OctOS/host_gerrit,dwhipstock/gerrit,dwhipstock/gerrit,jackminicloud/test,1yvT0s/gerrit,netroby/gerrit,evanchueng/gerrit,Overruler/gerrit,Overruler/gerrit,Team-OctOS/host_gerrit,quyixia/gerrit,Seinlin/gerrit,gcoders/gerrit,teamblueridge/gerrit,netroby/gerrit,quyixia/gerrit,makholm/gerrit-ceremony,WANdisco/gerrit,zommarin/gerrit,MerritCR/merrit,MerritCR/merrit,midnightradio/gerrit,dwhipstock/gerrit,quyixia/gerrit,bootstraponline-archive/gerrit-mirror,WANdisco/gerrit,duboisf/gerrit,ashang/aaron-gerrit,atdt/gerrit,teamblueridge/gerrit,jeblair/gerrit,cjh1/gerrit,supriyantomaftuh/gerrit,TonyChai24/test,ashang/aaron-gerrit,netroby/gerrit,basilgor/gerrit,ckamm/gerrit,Seinlin/gerrit,pkdevbox/gerrit,gracefullife/gerrit,Team-OctOS/host_gerrit,TonyChai24/test,catrope/gerrit,sudosurootdev/gerrit,bootstraponline-archive/gerrit-mirror,makholm/gerrit-ceremony,anminhsu/gerrit,skurfuerst/gerrit,dwhipstock/gerrit,catrope/gerrit,basilgor/gerrit,GerritCodeReview/gerrit,gracefullife/gerrit,gracefullife/gerrit,qtproject/qtqa-gerrit,gerrit-review/gerrit,hdost/gerrit,joshuawilson/merrit,keerath/gerrit_newssh,Overruler/gerrit,bpollack/gerrit,CandyShop/gerrit,MerritCR/merrit,qtproject/qtqa-gerrit,pkdevbox/gerrit,Overruler/gerrit,ashang/aaron-gerrit,anminhsu/gerrit,quyixia/gerrit,makholm/gerrit-ceremony,TonyChai24/test,Saulis/gerrit,ckamm/gerrit,thinkernel/gerrit,duboisf/gerrit,midnightradio/gerrit,supriyantomaftuh/gerrit,renchaorevee/gerrit,austinchic/Gerrit,anminhsu/gerrit,netroby/gerrit,bpollack/gerrit,atdt/gerrit,gcoders/gerrit,Seinlin/gerrit,gcoders/gerrit,thinkernel/gerrit,thesamet/gerrit,jeblair/gerrit,hdost/gerrit,joshuawilson/merrit,bootstraponline-archive/gerrit-mirror,austinchic/Gerrit,sudosurootdev/gerrit,gcoders/gerrit,1yvT0s/gerrit,Distrotech/gerrit,CandyShop/gerrit,thinkernel/gerrit,jackminicloud/test,1yvT0s/gerrit,thesamet/gerrit,ckamm/gerrit,makholm/gerrit-ceremony,bpollack/gerrit,dwhipstock/gerrit,qtproject/qtqa-gerrit,WANdisco/gerrit,thesamet/gerrit,anminhsu/gerrit,rtyley/mini-git-server,skurfuerst/gerrit,dwhipstock/gerrit,gerrit-review/gerrit,zommarin/gerrit,thesamet/gerrit,Seinlin/gerrit,Saulis/gerrit,TonyChai24/test,qtproject/qtqa-gerrit,jackminicloud/test,joshuawilson/merrit,keerath/gerrit_newssh,supriyantomaftuh/gerrit,GerritCodeReview/gerrit,joshuawilson/merrit,Seinlin/gerrit,ckamm/gerrit,supriyantomaftuh/gerrit,m1kah/gerrit-contributions,WANdisco/gerrit,renchaorevee/gerrit,keerath/gerrit_newssh,joshuawilson/merrit,TonyChai24/test,Team-OctOS/host_gerrit,Distrotech/gerrit,pkdevbox/gerrit,catrope/gerrit,joshuawilson/merrit,bpollack/gerrit,gcoders/gerrit,renchaorevee/gerrit,Saulis/gerrit,GerritCodeReview/gerrit,thinkernel/gerrit,evanchueng/gerrit,Saulis/gerrit,Team-OctOS/host_gerrit,zommarin/gerrit,jackminicloud/test,bpollack/gerrit,WANdisco/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,duboisf/gerrit,joshuawilson/merrit,WANdisco/gerrit,thinkernel/gerrit,Overruler/gerrit,catrope/gerrit,sudosurootdev/gerrit,teamblueridge/gerrit,quyixia/gerrit,qtproject/qtqa-gerrit,Distrotech/gerrit,atdt/gerrit,pkdevbox/gerrit,1yvT0s/gerrit,teamblueridge/gerrit,pkdevbox/gerrit,basilgor/gerrit,TonyChai24/test,cjh1/gerrit,qtproject/qtqa-gerrit,quyixia/gerrit,atdt/gerrit,bootstraponline-archive/gerrit-mirror,netroby/gerrit,hdost/gerrit,hdost/gerrit,TonyChai24/test,keerath/gerrit_newssh,GerritCodeReview/gerrit,Distrotech/gerrit,midnightradio/gerrit,sudosurootdev/gerrit,Saulis/gerrit,keerath/gerrit_newssh,zommarin/gerrit,gcoders/gerrit,dwhipstock/gerrit,supriyantomaftuh/gerrit,gerrit-review/gerrit,skurfuerst/gerrit,cjh1/gerrit,austinchic/Gerrit,midnightradio/gerrit,MerritCR/merrit,atdt/gerrit,austinchic/Gerrit,hdost/gerrit,jackminicloud/test,Seinlin/gerrit,1yvT0s/gerrit,duboisf/gerrit,Seinlin/gerrit,pkdevbox/gerrit,thesamet/gerrit,gerrit-review/gerrit,ashang/aaron-gerrit,m1kah/gerrit-contributions,evanchueng/gerrit,MerritCR/merrit,renchaorevee/gerrit,pkdevbox/gerrit,ashang/aaron-gerrit,renchaorevee/gerrit,WANdisco/gerrit,anminhsu/gerrit,joshuawilson/merrit,Saulis/gerrit,Distrotech/gerrit,hdost/gerrit,Team-OctOS/host_gerrit,jeblair/gerrit,gerrit-review/gerrit,anminhsu/gerrit,qtproject/qtqa-gerrit,thinkernel/gerrit,renchaorevee/gerrit,zommarin/gerrit,netroby/gerrit