half done
roughly went through
finish self review
Change to a proper translation for disabled people
add CGGeometry translation
Add Translation to 2012-12-10-instancetype
add nscharacterset, ready to translate
第一段
Merge pull request #116 from satchmo/instancetype_chs

Add Translation to 2012-12-10-instancetype
Merge pull request #115 from rickytan/zh-Hans

add CGGeometry translation
Merge pull request #112 from LiLejia/uiaccessibility

add Simplified Chinese translation to UIAccessibility
modify description
add description; misspell translator to translater
2～3 paragraph
多余的括号
modified some details.
Merge branch 'zh-Hans' of https://github.com/rickytan/articles into zh-Hans
littel change
made some corrections according to the review
Merge pull request #119 from satchmo/instancetype_chs

made some corrections according to the review