(fix:typo) mocdels -> models (#460)

Not a big deal but a probable speed-typing issue

README.md

@@ -205,7 +205,7 @@ end
 and bind to or create the user
 
 ```ruby
-# app/mocdels/user.rb
+# app/models/user.rb
 
 def self.from_omniauth(access_token)
     data = access_token.info