在GitHub上开源：贡献你第一段代码
"You have to start small and work your way up." And this is mine. 此文是http://spencermoran.me/2013/08/13/open-source-on-github-your-first-contribution/的翻译。 完全根据自己的理解翻译，有些地方我觉得难翻译的就按照自己...
