Typo in the french security page
Some changes in README
Use include for mailing list subscription form (en)
Use variables for locales in subscription form (en)
Add missing locales for subscription form
Use include for mailing list subscription form
Add notice regarding broken subscription form
Update index.md

Fix unclear translation on zh-cn/doc 
PS:the whole doc is way too old
Merge pull request #180 from rhapsodyn/patch-1

Update documentation of zh_cn