readme

Author: loiane

README.md

@@ -3,10 +3,18 @@ Learning JavaScript Data Structures and Algorithms
 
 Source code of **Learning JavaScript Data Structures and Algorithms** book.
 
+| 1st edition   | 2nd edition   | 
+| ------------- |:-------------:| 
+| ![1st edition](https://d1ldz4te4covpm.cloudfront.net/sites/default/files/imagecache/ppv4_main_book_cover/4874OS_Learning%20JavaScript%20Data%20Structures%20and%20Algorithms.jpg)      | ![2nd edition](https://dz13w8afd47il.cloudfront.net/sites/default/files/imagecache/ppv4_main_book_cover/B05348_MockupCover_Normal.jpg) | 
+|[Book link](https://www.packtpub.com/application-development/learning-javascript-data-structures-and-algorithms)| [Book link](https://www.packtpub.com/web-development/learning-javascript-data-structures-and-algorithms-second-edition)|
+
 Book link - first edition:
   - [Packt](https://www.packtpub.com/application-development/learning-javascript-data-structures-and-algorithms)
   - [Amazon](http://www.amazon.com/gp/product/1783554878/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=1783554878&linkCode=as2&tag=loiagron-20&linkId=7VBQ7OMJ47XY7MUV)
 
+Book link - second edition:
+ - [Packt](https://www.packtpub.com/web-development/learning-javascript-data-structures-and-algorithms-second-edition)
+
 ### List of Chapters:
 
 * 01: [JavaScript: a quick overview](https://github.com/loiane/javascript-datastructures-algorithms/tree/second-edition/chapter01)