Merge pull request #13 from Gaoyuan0710/gh-pages

Some content
Update 2014-07-30-why-do-not-use-fork-in-mul-thread-program.md

修改格式
Update 2014-07-30-why-do-not-use-fork-in-mul-thread-program.md

修改格式
Update 2014-07-30-why-do-not-use-fork-in-mul-thread-program.md

再次调整格式...忘了markdown的转义了...
Merge pull request #14 from Gaoyuan0710/gh-pages

Update 2014-07-30-read-function-return-code.md
Merge pull request #4 from hurley25/gh-pages

修改错别字