Added Time Series Modelling and Analysis (#10830)

courses/free-courses-en.md

@@ -523,6 +523,7 @@
 * [More Data Mining with Weka MOOC](https://www.cs.waikato.ac.nz/ml/weka/mooc/moredataminingwithweka/)
 * [NICO 101 - Introduction to Programming for Big Data](https://github.com/amarallab/Amaral_Lab_Intro_to_Data_Science) - Luis Amaral, Helio Tejedor, Luiz Alves
 * [The Analytics Edge](https://www.edx.org/course/analytics-edge-mitx-15-071x-3)
+* [Time Series Modelling and Analysis](https://www.youtube.com/playlist?list=PL3N9eeOlCrP5cK0QRQxeJd6GrQvhAtpBK) - AIEngineering
 
 
 ### Databases