Mention changing allowed host when running in docker
Mention changing allowed host when running in docker

`-p 8080:8080` isn't a useful flag without `--host 0.0.0.0`
girder/girder,Kitware/girder,girder/girder,RafaelPalomar/girder,girder/girder,jbeezley/girder,manthey/girder,girder/girder,jbeezley/girder,RafaelPalomar/girder,Kitware/girder,RafaelPalomar/girder,manthey/girder,jbeezley/girder,RafaelPalomar/girder,Kitware/girder,manthey/girder,manthey/girder,RafaelPalomar/girder,Kitware/girder,jbeezley/girder