Update README.md

Mooophy · Mooophy · commit 038fe2c9a94e · 2015-04-05T01:28:38.000+13:00
diff --git a/ch02/README.md b/ch02/README.md
@@ -202,7 +202,7 @@ From the pseudocode
 ##Ex2.3-7
 * Pseudocode
 ```python
-//Combine sorting and binary search together.
+#Combine sorting and binary search together.
 Are-There-Two-Elements-That-Have-Sum-As-Specified(set, sum)
   set.sort()
   for curr = 0 to set.length - 1
