clarify the label step

There is no "Add label" it is just titled "Labels"

Author: heckerdj

responses/08_test.md

@@ -8,5 +8,5 @@ In this pull request, there's a small change to the game. Once you add the label
 
 ### :keyboard: Activity: Add the proper label to this pull request
 
-1. On the right hand side, click **Add label**
+1. On the right hand side, click **Labels** or the gear next to it
 2. Select the label titled **stage**