Add note about shared runners [ci skip]
Add note about shared runners [ci skip]

mmkassem/gitlabhq,axilleas/gitlabhq,mmkassem/gitlabhq,stoplightio/gitlabhq,dreampet/gitlab,t-zuehlsdorff/gitlabhq,darkrasid/gitlabhq,axilleas/gitlabhq,jirutka/gitlabhq,stoplightio/gitlabhq,iiet/iiet-git,t-zuehlsdorff/gitlabhq,mmkassem/gitlabhq,dplarson/gitlabhq,t-zuehlsdorff/gitlabhq,darkrasid/gitlabhq,jirutka/gitlabhq,dreampet/gitlab,dplarson/gitlabhq,LUMC/gitlabhq,LUMC/gitlabhq,dreampet/gitlab,htve/GitlabForChinese,axilleas/gitlabhq,openwide-java/gitlabhq,LUMC/gitlabhq,darkrasid/gitlabhq,mmkassem/gitlabhq,iiet/iiet-git,t-zuehlsdorff/gitlabhq,htve/GitlabForChinese,darkrasid/gitlabhq,openwide-java/gitlabhq,dreampet/gitlab,LUMC/gitlabhq,iiet/iiet-git,jirutka/gitlabhq,openwide-java/gitlabhq,iiet/iiet-git,stoplightio/gitlabhq,stoplightio/gitlabhq,htve/GitlabForChinese,axilleas/gitlabhq,dplarson/gitlabhq,dplarson/gitlabhq,jirutka/gitlabhq,openwide-java/gitlabhq,htve/GitlabForChinese