Update README.md

assassint2017 · web-flow · commit 395e844ff58f · 2018-10-19T14:48:28.000+08:00
diff --git a/README.md b/README.md
@@ -105,7 +105,7 @@
 89. [Gray Code](https://github.com/assassint2017/leetcode-algorithm/tree/master/Gray%20Code)
 90. [Subsets II]()
 ----
-91. [Decode Ways]()
+91. [Decode Ways](https://github.com/assassint2017/leetcode-algorithm/tree/master/Decode%20Ways)
 92. []()
 93. [Restore IP Addresses]()
 94. []()
