Fixed typo

README.md

@@ -90,7 +90,7 @@ There is online documentation here:
 
  - http://rabaix.net/AdminBundle/html/index.html
 
-If you want to contribute to this documentation, you need to go to the ``Ressources/doc`` folder where 
+If you want to contribute to this documentation, you need to go to the ``Resources/doc`` folder where 
 the reStructuredText documentation is available.
 Please note the Github preview might break and hide some content.