Add 2 sentences to the marshmallow story

Author: nawaffelemban

english/marshmallow.md

@@ -32,6 +32,9 @@ Which way should you go? Only you can decide.
 
 Oh so many decisions - what will you do??
 
+In the end you will realize that it [doesn't really matter](http://www.smithsonianmag.com/smithsonian-institution/what-gives-robert-frosts-road-not-taken-its-power-180956200/).
+The path you choose is as good as any.
+
 You decide to drop everything you're doing and [run out the door](run_out_the_door/run_out_the_door.md)!
 
 [Build time machine](time-machine/time-machine.md)