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
Fix mailing list subscription form

Re-enables subscription via form by changing
the action url to newly created webservice.
Add missing 'code' class on mailing-lists page (ja)
Announce new ruby-lang.org (en)
:fr translation for the new website annonucement.
Typos (fr)
Many minor fixes; add some conferences (fr)

* typos
* grammar
* s/librairie/bibliothèque/
* french conferences added: RuLu, La Conf, DotRB
Fix typo in link
Fix errors on to-ruby-from pages (perl, C)
Remove broken links from to-ruby-from-perl page
Add latest news posts (pl)
Merge pull request #184 from crabonature/polish_translations

Add latest news posts (pl)
Translation (es) announcement 2013-06-12 6919cf9
Merge pull request #190 from hagarelvikingo/master

Translation (es) announcement 2013-06-12
translate new-ruby-lang-org-released into zh_cn
Update ja/libraries/index.md
Search button's fixed width becomes min-width
Merge pull request #193 from abelards/search_min_width

Search button's fixed width becomes min-width
(the button was too short for 'fr').
Link to files on ftp server instead of ja/man/archive