fix 目录 h2点击无效
修正在旧的webkit内核下calc的兼容问题
remove console.log
fix font path for 搜狗
Update freshman.md

Ch1修改
fix ie10 bug
Update freshman.md

Ch.All Updated
merge markdown
update github link
fix many bugs
comments
add url support
fix 登陆后跳转
fix url bug @ firefox
fix url set bug
bug fixing
fix nav 动画 & preface 动画
add md & img
add md & img
update the position of some covers