Update README.md

assassint2017 · web-flow · commit 7b641e9a9eba · 2018-10-18T10:20:20.000+08:00
diff --git a/README.md b/README.md
@@ -116,6 +116,6 @@
 99. []()
 100. []()
 ----
-136. [Single Number]()
+136. [Single Number](https://github.com/assassint2017/leetcode-algorithm/tree/master/Single%20Number)
 202. [Happy Number]()
 415. [Add Strings]()
