Fix link to psr-0/meta

Author: vdelau

source/_psr/psr-0.twig

@@ -6,7 +6,7 @@ markdown_source: fig-standards/accepted/PSR-0.md
 related:
     - { name: 'PSR-0: Autoloading Standard' }
     - { name: 'PSR-4: Autoloading Standard', permalink: /psr/psr-4/ }
-    - { name: 'PSR-0 Meta Document', permalink: /psr/psr-1/meta }
+    - { name: 'PSR-0 Meta Document', permalink: /psr/psr-0/meta }
 ---
 
 {{ parent() }}