Backport EE changes to some hashed storage documentation to CE
Backport EE changes to some hashed storage documentation to CE

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