chapter4, added full_title function
nav bootstrap partial
add chapter1 and chapter2 demo
Merge branch 'master' of https://github.com/bay6/prepare
Improve rspec
Finsh signup page
Finish demo app
Finsh chapter5
Initail commit
add the chapter 3
update the  Readme.md
In recoding:
After optimizing code
delete file
modify layout file
modify an write error
add chapter1
add chpater1
Merge pull request #30 from idanyzheng/master

PR跑分
Merge pull request #29 from kaku87/master

完成第一章和第二章