Add angle brackets around due date in slash cmds docs
Add angle brackets around due date in slash cmds docs

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