title: How to make contribution to project on Github
body: <p>On Github, most of the open source projects already have many existing commits. If I want to make my contribution to such a project, since I don't know which step the current project is, and I don't know what's needed to be done next, how should I start my contribution? Anyone who ever made some contributions, how did you start, I will really appreciate it if you can share some of you experiences.</p>