Hi @ecucurella, thanks for the pull request, I'm testing out these changes now.

When I generate the new documentation, Sphinx gives me these warnings about the new files:

```
/Users/gina/Sites/thinkup/docs/source/userguide/api/posts/index.rst:33: WARNING: toctree contains reference to nonexisting document u'userguide/api/posts/followers'
/Users/gina/Sites/thinkup/docs/source/userguide/api/posts/instances_hashtags.rst:48: WARNING: Definition list ends without a blank line; unexpected unindent.
/Users/gina/Sites/thinkup/docs/source/userguide/api/posts/instances_hashtags.rst:49: WARNING: Definition list ends without a blank line; unexpected unindent.
/Users/gina/Sites/thinkup/docs/source/userguide/api/posts/instances_posts.rst:42: ERROR: Unexpected indentation.
/Users/gina/Sites/thinkup/docs/source/userguide/api/posts/instances_posts.rst:52: WARNING: Block quote ends without a blank line; unexpected unindent.
/Users/gina/Sites/thinkup/docs/source/userguide/api/posts/instances_posts.rst:53: WARNING: Definition list ends without a blank line; unexpected unindent.
/Users/gina/Sites/thinkup/docs/source/userguide/api/posts/users_followers.rst:45: WARNING: undecodable source characters, replacing with "?": '        "description": "El twitter oficial del programa Alguna Pregunta M>>>\xe9<<<s de TV3. Has trobat una p\xedfia? Ajuda\'ns! http://www.tv3.cat/apm/html/pifiesAPM.html",'
/Users/gina/Sites/thinkup/docs/source/userguide/api/posts/users_followers.rst:45: WARNING: undecodable source characters, replacing with "?": '        "description": "El twitter oficial del programa Alguna Pregunta M\xe9s de TV3. Has trobat una p>>>\xed<<<fia? Ajuda\'ns! http://www.tv3.cat/apm/html/pifiesAPM.html",'
/Users/gina/Sites/thinkup/docs/source/userguide/api/posts/users_followers.rst:38: ERROR: Unexpected indentation.
/Users/gina/Sites/thinkup/docs/source/userguide/api/posts/users_followers.rst:61: WARNING: Definition list ends without a blank line; unexpected unindent.
/Users/gina/Sites/thinkup/docs/source/userguide/api/posts/users_followers.rst:62: WARNING: Block quote ends without a blank line; unexpected unindent.
```