Merge pull request #2 from CocoaChina-editors/master

merge to edit
校对内容
Update 08Patterns.md
Update 08Patterns.md
校对2-1
Merge pull request #83 from Ckitakishi/master

A.3-8的翻译
修复连接问题
Merge pull request #84 from Evilcome/master

校对1-1 2-1
Merge pull request #85 from bytegh/master

Merge pull request #2 from CocoaChina-editors/master
校正2-4和4-1

校正2-4和4-1
Merge branch 'ChildhoodAndyCorrection'
Merge branch 'master' of https://github.com/CocoaChina-editors/Welcome-to-Swift
修改2-1部分格式
B.1-1 format and content correction

B.1-1 格式、内容校正
update the content of A book

update the content of A book
Update 05Interacting with C APIs.md
update content of B book

update content of B book
Update 05Interacting with C APIs.md
Update 05Interacting with C APIs.md
Update 05Interacting with C APIs.md