Update documentation on reserved words for groups and projects
Update documentation on reserved words for groups and projects

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