Add links to landing page and youtube video
Add links to landing page and youtube video

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