link to errata page

Author: egonSchiele

README.md

@@ -4,6 +4,10 @@ This is the code in my book [Grokking Algorithms](https://www.manning.com/bharga
 
 Also check out [Python Tutor](http://pythontutor.com/), a great website that helps you step through Python code line by line.
 
+## Errata
+
+[Here's the errata page](http://adit.io/errata.html).
+
 ## Images
 
 This repo also contains every image in Grokking Algorithms, in hi-res. These images are available for free for non-commercial use. If you use an image, please add "copyright Manning Publications, drawn by adit.io". You are welcome to use these images in any non-commercial teaching materials, presentations, etc.