Fix typo

canteeneo/api.py

@@ -51,7 +51,7 @@ def new_user():
 
     user = User.query.filter_by(username=username).first()
     if user is not None:
-        return 'Username is alreadye taken!'
+        return 'Username is already taken!'
     user = User.query.filter_by(email=email).first()
     if user is not None:
         return 'Email address is already taken!'