Merge pull request #2135 from recommenders-team/miguel/free_course

Added free course on Recommendation systems

README.md

@@ -164,6 +164,7 @@ The nightly build tests are run daily on AzureML.
 
 ## References
 
+- **FREE COURSE**: M. González-Fierro, "Recommendation Systems: A Practical Introduction", LinkedIn Learning, 2024. [Available on this link](https://www.linkedin.com/learning/recommendation-systems-a-practical-introduction).
 - D. Li, J. Lian, L. Zhang, K. Ren, D. Lu, T. Wu, X. Xie, "Recommender Systems: Frontiers and Practices", Springer, Beijing, 2024. [Available on this link](https://www.amazon.com/Recommender-Systems-Frontiers-Practices-Dongsheng/dp/9819989639/).
 - A. Argyriou, M. González-Fierro, and L. Zhang, "Microsoft Recommenders: Best Practices for Production-Ready Recommendation Systems", *WWW 2020: International World Wide Web Conference Taipei*, 2020. Available online: https://dl.acm.org/doi/abs/10.1145/3366424.3382692
 - S. Graham,  J.K. Min, T. Wu, "Microsoft recommenders: tools to accelerate developing recommender systems", *RecSys '19: Proceedings of the 13th ACM Conference on Recommender Systems*, 2019. Available online: https://dl.acm.org/doi/10.1145/3298689.3346967