change readme to the truth (this is trivial commit)
Merge branch 'master' of github.com:markdown-chat/markdown-chat
add image to visualize status of travis-ci
Merge pull request #1 from garaemon/update-readme

Update readme
add how to install mongodb
Merge pull request #2 from garaemon/update-readme-about-mongo

add how to install mongodb
Merge branch 'master' of https://github.com/markdown-chat/markdown-chat