Typo

eliasdiem · eliasdiem · commit 21a8c6c60fe4 · 2014-10-08T09:29:43.000+02:00
diff --git a/ch02/2.2/2.2.md b/ch02/2.2/2.2.md
@@ -36,7 +36,7 @@ What language is generated by the following grammars? In each case justify your
 
 ### 2.2.3
 
-Which of the grammars in Exercise 2.2.2 are ambiguous
+Which of the grammars in Exercise 2.2.2 are ambiguous?
 
 #### Answer
 
