docs(fromto): instructions upgrade

subjects/fromto/README.md

@@ -2,9 +2,8 @@
 
 ### Instructions
 
-Write a function that takes two `integers` and returns a `string` representing the range of numbers from the first to the second.
+Write a function that takes two `integers` and returns a `string` showing the range of numbers from the first to the second.
 
-- The function can return the numbers in any order.
 - The numbers must be separated by a comma and a space.
 - If any of the arguments is bigger than 99 or less than 0, the function returns `Invalid` followed by a newline `\n`.
 - Add a `0` at the beginning of any number if it is less than 10.