Fixed title of exercise and link

Author: ardan-bkennedy

06-composition/readme.md

@@ -14,13 +14,13 @@ http://golang.org/doc/effective_go.html#embedding
 
 ## Code Review
 
-[Composition I](example1) ([Go Playground](http://play.golang.org/p/W5ya6_LAU6))
+[Composition I](example1/example1.go) ([Go Playground](http://play.golang.org/p/W5ya6_LAU6))
 
 [Composition II](example2/example2.go) ([Go Playground](http://play.golang.org/p/QKIjbBDW16))
 
 ## Exercises
 
-### Exercise 2
+### Exercise 1
 
 **Part A** Follow the guided comments to: