Refactor YAML anchors and explain the examples
Refactor YAML anchors and explain the examples

daiyu/gitlab-zh,darkrasid/gitlabhq,screenpages/gitlabhq,LUMC/gitlabhq,shinexiao/gitlabhq,martijnvermaat/gitlabhq,screenpages/gitlabhq,jirutka/gitlabhq,dwrensha/gitlabhq,t-zuehlsdorff/gitlabhq,darkrasid/gitlabhq,shinexiao/gitlabhq,allysonbarros/gitlabhq,dreampet/gitlab,SVArago/gitlabhq,icedwater/gitlabhq,LUMC/gitlabhq,Soullivaneuh/gitlabhq,dreampet/gitlab,larryli/gitlabhq,dreampet/gitlab,openwide-java/gitlabhq,allysonbarros/gitlabhq,mmkassem/gitlabhq,mr-dxdy/gitlabhq,dreampet/gitlab,openwide-java/gitlabhq,dwrensha/gitlabhq,stoplightio/gitlabhq,screenpages/gitlabhq,t-zuehlsdorff/gitlabhq,SVArago/gitlabhq,SVArago/gitlabhq,dplarson/gitlabhq,mr-dxdy/gitlabhq,darkrasid/gitlabhq,axilleas/gitlabhq,dwrensha/gitlabhq,LUMC/gitlabhq,Soullivaneuh/gitlabhq,axilleas/gitlabhq,martijnvermaat/gitlabhq,iiet/iiet-git,stoplightio/gitlabhq,mmkassem/gitlabhq,larryli/gitlabhq,allysonbarros/gitlabhq,mr-dxdy/gitlabhq,jirutka/gitlabhq,martijnvermaat/gitlabhq,htve/GitlabForChinese,LUMC/gitlabhq,icedwater/gitlabhq,screenpages/gitlabhq,larryli/gitlabhq,mmkassem/gitlabhq,openwide-java/gitlabhq,t-zuehlsdorff/gitlabhq,iiet/iiet-git,allysonbarros/gitlabhq,htve/GitlabForChinese,dwrensha/gitlabhq,stoplightio/gitlabhq,SVArago/gitlabhq,dplarson/gitlabhq,mr-dxdy/gitlabhq,Soullivaneuh/gitlabhq,icedwater/gitlabhq,htve/GitlabForChinese,openwide-java/gitlabhq,icedwater/gitlabhq,stoplightio/gitlabhq,jirutka/gitlabhq,darkrasid/gitlabhq,daiyu/gitlab-zh,mmkassem/gitlabhq,dplarson/gitlabhq,iiet/iiet-git,dplarson/gitlabhq,axilleas/gitlabhq,iiet/iiet-git,shinexiao/gitlabhq,axilleas/gitlabhq,shinexiao/gitlabhq,larryli/gitlabhq,daiyu/gitlab-zh,htve/GitlabForChinese,daiyu/gitlab-zh,jirutka/gitlabhq,t-zuehlsdorff/gitlabhq,martijnvermaat/gitlabhq,Soullivaneuh/gitlabhq