Add note about routes directory convention to multi_route plugin
Add note about routes directory convention to multi_route plugin

jeremyevans/roda,jeremyevans/roda,johan--/roda,Freaky/roda,johan--/roda,duykhoa/roda,mikz/roda,kematzy/roda,Freaky/roda,janko-m/roda,johan--/roda,janko-m/roda,duykhoa/roda,jeremyevans/roda,mikz/roda,mikz/roda,celsworth/roda,celsworth/roda,duykhoa/roda,Freaky/roda,kematzy/roda,celsworth/roda,janko-m/roda,kematzy/roda