Update README.md to include introductory blog post

README.md

@@ -62,4 +62,4 @@ perpetual = "0.2.0"
 
 ## Paper
 
-PerpetualBooster prevents overfitting with a generalization algorithm. The paper is work-in-progress to explain how the algorithm works.
+PerpetualBooster prevents overfitting with a generalization algorithm. The paper is work-in-progress to explain how the algorithm works. Check our [blog post](https://perpetual-ml.com/blog/how-perpetual-works) for a high level introduction to the algorithm.