diff --git a/CHANGES.md b/CHANGES.md
index ee2adbbb7..1e3b5c67f 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -18,4 +18,4 @@ xgboost-unity
 * Support for boosting from initial predictions
 * Experimental version of LambdaRank
 * Linear booster is now parallelized, using parallel coordinated descent.
-* Add [code guide](src/README.md)
+* Add [Code Guide](src/README.md) for customizing objective function and 
diff --git a/README.md b/README.md
index f9a72e418..7b28e4499 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ Turorial and Documentation: https://github.com/tqchen/xgboost/wiki
 
 Questions and Issues: [https://github.com/tqchen/xgboost/issues](https://github.com/tqchen/xgboost/issues?q=is%3Aissue+label%3Aquestion)
 
-Notes on the Code: [src/REAMDE.md](src/README.md)
+Notes on the Code: [Code Guide](src/README.md)
 
 Features
 ======
@@ -26,7 +26,8 @@ Version
 * This version is named xgboost-unity, the code has been refactored from 0.2x to be cleaner and more flexibility
 * This version of xgboost is not compatible with 0.2x, due to huge amount of changes in code structure
   - This means the model and buffer file of previous version can not be loaded in xgboost-unity
-* For legacy 0.2x code, refer to 
+* For legacy 0.2x code, refer to [Here](https://github.com/tqchen/xgboost/releases/tag/v0.22)
+* Change log in [CHANGES.md](CHANGES.md)
 
 Build
 ======