update README.md

quantjin · quantjin · commit d1eb11cfc680 · 2016-12-29T10:25:40.000+08:00
diff --git a/README.md b/README.md
@@ -19,11 +19,11 @@ npm install quantlib
 
 * Windows - 64-Bit
 
-I will try to build and upload the pre-built addon, before that, Please refer to [how to build](#building_the_native_addon) below
+I will try to build and upload the pre-built addon, before that, Please refer to [how to build](#building-the-native-addon) below
 
 * Linux & Mac
 
-Please refer to [how to build](#building_the_native_addon) below
+Please refer to [how to build](#building-the-native-addon) below
 
 
 ## QuantLib Documents
