Fix Ruby syntax error in Gitaly config example
Fix Ruby syntax error in Gitaly config example

dreampet/gitlab,jirutka/gitlabhq,iiet/iiet-git,stoplightio/gitlabhq,stoplightio/gitlabhq,axilleas/gitlabhq,iiet/iiet-git,iiet/iiet-git,stoplightio/gitlabhq,iiet/iiet-git,mmkassem/gitlabhq,mmkassem/gitlabhq,dreampet/gitlab,jirutka/gitlabhq,axilleas/gitlabhq,mmkassem/gitlabhq,axilleas/gitlabhq,stoplightio/gitlabhq,dreampet/gitlab,jirutka/gitlabhq,axilleas/gitlabhq,jirutka/gitlabhq,mmkassem/gitlabhq,dreampet/gitlab