Add note on artifacts browser functionality
Add note on artifacts browser functionality

Based on the following comment:
https://gitlab.com/gitlab-org/gitlab-ce/issues/12634#note_3359006

[ci skip]

screenpages/gitlabhq,daiyu/gitlab-zh,dreampet/gitlab,ttasanen/gitlabhq,openwide-java/gitlabhq,stoplightio/gitlabhq,jirutka/gitlabhq,Soullivaneuh/gitlabhq,allysonbarros/gitlabhq,jirutka/gitlabhq,screenpages/gitlabhq,martijnvermaat/gitlabhq,dreampet/gitlab,jrjang/gitlabhq,jirutka/gitlabhq,darkrasid/gitlabhq,htve/GitlabForChinese,allysonbarros/gitlabhq,ttasanen/gitlabhq,martijnvermaat/gitlabhq,larryli/gitlabhq,dplarson/gitlabhq,shinexiao/gitlabhq,yatish27/gitlabhq,SVArago/gitlabhq,LUMC/gitlabhq,ttasanen/gitlabhq,dplarson/gitlabhq,jrjang/gitlabhq,axilleas/gitlabhq,yatish27/gitlabhq,stoplightio/gitlabhq,Soullivaneuh/gitlabhq,LUMC/gitlabhq,allysonbarros/gitlabhq,mmkassem/gitlabhq,mr-dxdy/gitlabhq,shinexiao/gitlabhq,screenpages/gitlabhq,stoplightio/gitlabhq,jrjang/gitlabhq,mr-dxdy/gitlabhq,SVArago/gitlabhq,icedwater/gitlabhq,dwrensha/gitlabhq,mr-dxdy/gitlabhq,dplarson/gitlabhq,icedwater/gitlabhq,dreampet/gitlab,dwrensha/gitlabhq,jirutka/gitlabhq,allysonbarros/gitlabhq,screenpages/gitlabhq,iiet/iiet-git,ttasanen/gitlabhq,dwrensha/gitlabhq,yatish27/gitlabhq,shinexiao/gitlabhq,daiyu/gitlab-zh,LUMC/gitlabhq,daiyu/gitlab-zh,icedwater/gitlabhq,darkrasid/gitlabhq,larryli/gitlabhq,mrb/gitlabhq,dreampet/gitlab,t-zuehlsdorff/gitlabhq,iiet/iiet-git,dplarson/gitlabhq,martijnvermaat/gitlabhq,jrjang/gitlab-ce,daiyu/gitlab-zh,SVArago/gitlabhq,martijnvermaat/gitlabhq,iiet/iiet-git,t-zuehlsdorff/gitlabhq,mmkassem/gitlabhq,htve/GitlabForChinese,mr-dxdy/gitlabhq,larryli/gitlabhq,LUMC/gitlabhq,Soullivaneuh/gitlabhq,icedwater/gitlabhq,jrjang/gitlab-ce,axilleas/gitlabhq,jrjang/gitlab-ce,Soullivaneuh/gitlabhq,darkrasid/gitlabhq,dwrensha/gitlabhq,SVArago/gitlabhq,yatish27/gitlabhq,htve/GitlabForChinese,axilleas/gitlabhq,mrb/gitlabhq,mrb/gitlabhq,larryli/gitlabhq,stoplightio/gitlabhq,openwide-java/gitlabhq,openwide-java/gitlabhq,mmkassem/gitlabhq,iiet/iiet-git,axilleas/gitlabhq,shinexiao/gitlabhq,t-zuehlsdorff/gitlabhq,jrjang/gitlabhq,htve/GitlabForChinese,mmkassem/gitlabhq,jrjang/gitlab-ce,mrb/gitlabhq,darkrasid/gitlabhq,openwide-java/gitlabhq,t-zuehlsdorff/gitlabhq