Rename index.js to script.js

Author: SuRu190

09-Count-Digits-in-a-Number/index.js renamed to 09-Count-Digits-in-a-Number/script.js

@@ -8,4 +8,4 @@ while (number > 0) {
   count++;
 }
 
-console.log("Total digits are: " + count);
+console.log("Total digits are: " + count);