Merge pull request #249 from lethalbrains/master

Added new "Machine Learning Algorithm" to the categories with Decision tree activity

README.md

@@ -405,6 +405,7 @@
 * [**Python**: _Stock Market Predictions with LSTM in Python_](https://www.datacamp.com/community/tutorials/lstm-python-stock-market)
 * [**Python**: _Build your own error-correction fountain code with Luby Transform Codes_](https://franpapers.com/en/algorithmic/2018-introduction-to-fountain-codes-lt-codes-with-python/)
 * [**Python**: _Building a simple Generative Adversial Network (GAN) using Tensorflow_](https://blog.paperspace.com/implementing-gans-in-tensorflow/)
+* [**Python**: _Learn ML Algorithms by coding: Decision Trees_](https://lethalbrains.com/learn-ml-algorithms-by-coding-decision-trees-439ac503c9a4)
 * [**Python**: _JSON Decoding Algorithm_](https://github.com/cheery/json-algorithm)
 * [**Ruby**: _A Pedometer in the Real World_](http://aosabook.org/en/500L/a-pedometer-in-the-real-world.html)
 * [**Ruby**: _Creating a Linux Desktop application with Ruby_](https://iridakos.com/tutorials/2018/01/25/creating-a-gtk-todo-application-with-ruby)