added links to numpy , opencv yt playlist from yes tech (#9527)

* added links to numpy , opencv yt playlist from yes tech

* sort in alphabetical order

* moved opencv, numpy to python

* corrections

* lint

* .

* Update courses/free-courses-ml.md

* Update courses/free-courses-ml.md

* alphabetize

---------

Co-authored-by: Eric Hellman <eric@hellman.net>

courses/free-courses-ml.md

@@ -208,7 +208,9 @@
 
 ### Python
 
+* [OpenCV-Python Computer Vision](https://www.youtube.com/playlist?list=PL1JrLEBAapUWeV2O_wVIrX4BdWvJpepz7) - Yes Tech Media
 * [Python](https://www.youtube.com/playlist?list=PLwe8bwPXjlLveEHvTbKMXJOPkFdXnu4xi) - Learn CSE Malayalam
+* [Python Numpy Malayalam Tutorial](https://www.youtube.com/playlist?list=PL1JrLEBAapUVkjt4Q1R_ZFFRT_80WBCyx) - Yes Tech Media
 * [Python Programming Malayalam Tutorial](https://www.youtube.com/watch?v=ihnWXGPxNEk) - Yes Tech Media
 * [Python Tutorial Malayalam \| Best Malayalam Python Programming Tutorial](https://youtube.com/playlist?list=PLY-ecO2csVHfbpOmWamlb8Mujjdnl1jks) - Brototype Malayalam 
 
@@ -230,3 +232,4 @@
 
 * [Cyber Security Tutorial Malayalam \| Ethical Hacking Courses for IT Career](https://www.youtube.com/playlist?list=PLR2UNjW_Pkm8LUpryeuiLMpEf4KgCDeBu) - RootSaid - Robotics, Technology & Cyber Security
 * [Security Fundamentals](https://www.youtube.com/playlist?list=PLEhpnavDYfVhGnYA4l8btphQG8i2zO4cI) - Cyber Security Malayalam
+