adjust text for second problem

Author: abachma2

source/user/tutorial/index.rst

@@ -35,7 +35,7 @@ Exercise #1
 Exercise #2
 -------------
 
-The description of this exercise will be described with less detail and more
+The steps of this exercise will be described with less detail and more
 flexibility than the previous exercise.  This should allow you to test your
 new-found knowledge, learn to explore your own analysis, and try some things
 on your own, all with the support of the Cyclus development team.