Update README.md

Ok I really need to triple check to make sure i'm not missing anything else oops

Author: Brambles-c

README.md

@@ -13,7 +13,7 @@ node index.js
 ```
 
 ## Known Issues:
-1. Currently it can't tell when it's been disconnected because of a duplicate login and it'll keep trying to add videos without any errors being thrown
+1. Accepts invalid auth cookie input meaning that any video it will add will be added as temporary
 
 ## ToDo:
 1. Error handling for invalid auth cookie input