2.GitHub was officially launched on April 2008 10. Besides hosting Git code repository and basic Web management interface, it also provides functions such as subscription, discussion group, text rendering, online file editor, collaborative map (report) and code fragment sharing (Gist).
3.GitHub has more than 3.5 million registered users and a large number of hosted versions, including RubyonRails, jQuery, python and many other well-known open source projects.
4.gitHub can host various Git libraries and provide a web interface, but it is different from domestic SourceForge, GoogleCode or coding services. GitHub's unique selling point is the simplicity of branching from another project.
5. Contributing code to a project is very simple: first, click the "fork" button on the project site, then check out the code and add the modification to the newly separated code base, and finally apply to the project leader for code consolidation through the built-in "pullrequest" mechanism.