moved psr-0 proposal page. See https://groups.google.com/d/msg/php-standards/V0UGR2tzupU/jD9HNjCunbQJ

Author: garak

quick_tour/the_architecture.rst

@@ -362,5 +362,5 @@ need to learn a lot to become a Symfony2 master. Ready to dig into these
 topics now? Look no further - go to the official :doc:`/book/index` and pick
 any topic you want.
 
-.. _standards:               http://groups.google.com/group/php-standards/web/psr-0-final-proposal
+.. _standards:               https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-0.md
 .. _convention:              http://pear.php.net/