Auto merge of #276 - Vinatorul:dev, r=@james-darkfox
Auto merge of #276 - Vinatorul:dev, r=@james-darkfox

chore: update .travis.yml to upload docs with YAML features


cstorey/clap-rs,grossws/clap-rs,clap-rs/clap,Vinatorul/clap-rs,sru/clap-rs,cstorey/clap-rs,kbknapp/clap-rs,sru/clap-rs,darayus/clap-rs,darayus/clap-rs,grossws/clap-rs,sru/clap-rs,darayus/clap-rs,grossws/clap-rs,kbknapp/clap-rs,cstorey/clap-rs,Vinatorul/clap-rs,Vinatorul/clap-rs,clap-rs/clap,clap-rs/clap