diff --git a/R-package/README.md b/R-package/README.md
index 07b124b8e..cdec7ac97 100644
--- a/R-package/README.md
+++ b/R-package/README.md
@@ -1,10 +1,20 @@
-This is subfolder for experimental version of R package.
+# R package for xgboost.
 
-Installation:
+## Installation
+
+For up-to-date version(which is recommended), please install from github.
 
 ```r
 require(devtools)
 install_github('xgboost','tqchen',subdir='R-package')
 ```
 
+For stable version on CRAN, please run
+
+```r
+install.packages('xgboost')
+```
+
+## Examples
+
 Please visit [demo](https://github.com/tqchen/xgboost/blob/master/R-package/inst/examples/demo.R) for more details.