Improved documentation on HA sentinel part and Redis replication troubleshooting.
Improved documentation on HA sentinel part and Redis replication troubleshooting.

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