[sfDoctrineEditableComponentPlugin] updated README
[sfDoctrineEditableComponentPlugin] updated README

git-svn-id: 0ee0af7c0f89702f9938e7c1e5ff3cc9c89c06d1@19823 ee427ae8-e902-0410-961c-c3ed070cd9f9

Symfony-Plugins/sfDoctrineEditableComponentPlugin,Symfony-Plugins/sfDoctrineEditableComponentPlugin