Added OpenCV Course by NgodingPython (#3980)

* add OpenCV Course by NgodingPython

* move OpenCV course to python category

free-courses-id.md

@@ -151,6 +151,7 @@
 * [Belajar Pemrograman Python untuk Pemula](https://www.youtube.com/playlist?list=PL-CtdCApEFH_HY6bL3JER8WJOxz1nb3_H) - Programmer Zaman Now
 * [Belajar Python 3.x Object Oriented Programming Bahasa Indonesia (OOP)](https://www.youtube.com/playlist?list=PLZS-MHyEIRo7cgStrKAMhgnOT66z2qKz1) - Kelas Terbuka
 * [Belajar Python Bahasa Indonesia (Dasar)](https://www.youtube.com/playlist?list=PLZS-MHyEIRo7cgStrKAMhgnOT66z2qKz1) - Kelas Terbuka
+* [OpenCV untuk Pemula](https://www.youtube.com/playlist?list=PLl-Zj2iuqlwt4cBsBy_Ej7gNlXdQ7blCB) - NgodingPython
 * [Tutorial Python Bahasa Indonesia](https://www.youtube.com/playlist?list=PLCZlgfAG0GXDc9Wcsi2fUn0pAr41GDL6m) - Sekolah Koding