Update README.md

Author: sichkar-valentyn

README.md

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 Implementing Machine Learning algorithms and techniques in Python.
 <br/>[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.1345027.svg)](https://doi.org/10.5281/zenodo.1345027)
 
-### Courses:
-* Explore the course **"Convolutional Neural Networks for Image Classification"** here: https://stepik.org/course/53801/promo
-
 ### Reference to:
 Valentyn N Sichkar. Machine Learning in Python // GitHub platform. DOI: 10.5281/zenodo.1345027