[authors] broken links on www.oooauthors.org website

[Nikita]

Hello,    

     While going through the website, I found the broken links below :
1. On Home page, the PDF and ODT links
http://oooauthors.org/en/authors/userguide3/published/ and
http://oooauthors.org/en/authors/userguide2/published/
 
2. On 'http://www.oooauthors.org/english' page, I think the link
'introduction to reviewing' is not pointing to the correct page.

Nikita