Update 4-reverse_array.adoc

reworded to be easier to understand what was expected

revamp_activities/Activity4-Reverse_arrays/4-reverse_array.adoc

@@ -3,4 +3,13 @@
 
 = ACTIVITY: Reverse Arrays
 
-Create an array that contains a range from a random number between -10 and 0 then another random number between 1 and 20 then create a variable that contains the contents of the array in reverse.
+* Create an `array` containing a range with a random starting and stopping point.  The starting point will be a random number from -10 through 0.  
+The ending point will be a random number from 1 through 20.  
+
+[NOTE]
+For example, if the first random number is -3, and the second random number is 2, your `array` will be -3, -2, -1, 0, 1, 2 
+
+* Create a `variable` that contains the contents of the `array` in `reverse`
+
+[NOTE]
+Using the above example, your `reversed array` will be 2, 1, 0, -1, -2, -3
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