style(reversemenuindex): formatting header from exercise title and format text

subjects/reversemenuindex/README.md

@@ -1,10 +1,10 @@
-## reversemenuindex
+# reversemenuindex
 
 ### Instructions
 
 The restaurant employees are having a really tough day and are delivering the customers' food in the wrong order. You need to fix the problem so that they can deliver it correctly.
 
-Write a function `ReverseMenuIndex` that takes an array of strings as arguments and returns another array of strings with the menu in the correct order.
+Write a function `ReverseMenuIndex()` that takes an array of strings as arguments and returns another array of strings with the menu in the correct order.
 
 - `append()` is not allowed for this exercise.