README.md in thundersvm-0.1.3 vs README.md in thundersvm-0.1.4

@@ -14,10 +14,16 @@
 
 ```ruby
 gem 'thundersvm'
 ```
 
+On Mac, also install OpenMP:
+
+```sh
+brew install libomp
+```
+
 ## Getting Started
 
 Prep your data
 
 ```ruby
@@ -146,9 +152,10 @@
 ```
 
 ## Resources
 
 - [ThunderSVM: A Fast SVM Library on GPUs and CPUs](https://github.com/Xtra-Computing/thundersvm/blob/master/thundersvm-full.pdf)
+- [A Practical Guide to Support Vector Classification](https://www.csie.ntu.edu.tw/~cjlin/papers/guide/guide.pdf)
 
 ## History
 
 View the [changelog](https://github.com/ankane/thundersvm/blob/master/CHANGELOG.md)