Fix merge request versions api doc
Fix merge request versions api doc

Signed-off-by: Dmitriy Zaporozhets <be23d75b156792e5acab51b196a2deb155d35d6a@gmail.com>

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