Update README.md

Replaced number list with bullet list for a hint.

Author: hexbreak

exercises/01.5-loop-seventeen/README.md

@@ -31,7 +31,7 @@ Note that the number specified in range(), 5 in this example, is never reached a
 1. Count from 1 to 17 with a loop and print each number on the console.
 
 💡HINT:
-1. This how you loop
+- This how you loop
 `https://www.w3schools.com/python/python_for_loops.asp`
 
 Expected console result: