add wiki page
Merge pull request #13 from yujingz/patch-1

Claim variables.md
translate navigation links' text
Merge pull request #14 from yizeng/master

translate navigation links' text
claim posts.md
Merge pull request #15 from sdpfoue/master

claim posts.md
Update sites.md
Merge pull request #16 from sanddudu/master

认领 sites.md
translate site.md
translate the docs/configuration.md
Merge pull request #17 from sanddudu/master

translate site.md
finishi posts.md
Merge pull request #19 from sdpfoue/master

finish posts.md
Merge pull request #20 from xcatliu/master

add wiki page
translate github-pages.md
Merge pull request #21 from brickgao/master

translate github-pages.md
translate heroku.md
认领 pages.md
按最新的翻译要求修改了一下posts.md
translate table headers