Merge pull request practical-tutorials#131 from prtk1910/master

Update README.md

Author: tuvtran

README.md

@@ -347,6 +347,7 @@ To get started, simply fork this repo. Please refer to [CONTRIBUTING.md](CONTRIB
 - [Build Your Own Neural Net from Scratch in Python](https://towardsdatascience.com/how-to-build-your-own-neural-network-from-scratch-in-python-68998a08e4f6)
 - [Linear Regression in Python without sklearn](https://medium.com/we-are-orb/linear-regression-in-python-without-scikit-learn-50aef4b8d122)
 - [Multivariate Linear Regression without sklearn](https://medium.com/we-are-orb/multivariate-linear-regression-in-python-without-scikit-learn-7091b1d45905)
+- [Music Recommender using KNN](https://towardsdatascience.com/how-to-build-a-simple-song-recommender-296fcbc8c85)
 
 ### OpenCV: