fixed yaml indention in docs
fixed yaml indention in docs

ARTACK/SonataAdminBundle,peter-gribanov/SonataAdminBundle,dmarkowicz/SonataAdminBundle,greg0ire/SonataAdminBundle,ARTACK/SonataAdminBundle,sonata-project/SonataAdminBundle,osavchenko/SonataAdminBundle,jordisala1991/SonataAdminBundle,osavchenko/SonataAdminBundle,ossinkine/SonataAdminBundle,peter-gribanov/SonataAdminBundle,mweimerskirch/SonataAdminBundle,ARTACK/SonataAdminBundle,ARTACK/SonataAdminBundle,ossinkine/SonataAdminBundle,osavchenko/SonataAdminBundle,peter-gribanov/SonataAdminBundle,greg0ire/SonataAdminBundle,dmarkowicz/SonataAdminBundle,mweimerskirch/SonataAdminBundle,greg0ire/SonataAdminBundle,osavchenko/SonataAdminBundle,OskarStark/SonataAdminBundle,mweimerskirch/SonataAdminBundle,jordisala1991/SonataAdminBundle,OskarStark/SonataAdminBundle,ossinkine/SonataAdminBundle,sonata-project/SonataAdminBundle,dmarkowicz/SonataAdminBundle,Armstrong1992/SonataAdminBundle,osavchenko/SonataAdminBundle,peter-gribanov/SonataAdminBundle,ossinkine/SonataAdminBundle,jordisala1991/SonataAdminBundle,OskarStark/SonataAdminBundle,greg0ire/SonataAdminBundle,dmarkowicz/SonataAdminBundle,dmarkowicz/SonataAdminBundle,mweimerskirch/SonataAdminBundle,OskarStark/SonataAdminBundle,jordisala1991/SonataAdminBundle,Armstrong1992/SonataAdminBundle