updated links and license

Author: PeterLi2016

README.md

@@ -1,11 +1,11 @@
 ## Example-Models
 
 This repository holds the following suites of example models:
-- ARM Models
+- [ARM Models](https://github.com/stan-dev/example-models/wiki/ARM-Models)
 - Basic Distributions
 - Basic Estimators
-- BUGS Models (volumes 1--3)
+- [BUGS Models (volumes 1--3)](https://github.com/stan-dev/example-models/wiki/BUGS-Examples)
 
 ## Licensing
 
-All of the example models are licensed under new BSD.
+All of the example models are licensed under new BSD license.