Add Golang & Python courses (#5957)

Author: laluardian

courses/free-courses-id.md

@@ -139,6 +139,9 @@
 * [Belajar Golang Basic Bahasa Indonesia](https://www.youtube.com/playlist?list=PLCZlgfAG0GXDztO-BFc9R5afhP26Dhsgm) - Sekolah Koding
 * [Golang Fundamental](https://buildwithangga.com/kelas/golang-fundamental?thumbnail=nk4neM2UyG.54&main_leads=browse) - BuildWithAngga
 * [Golang Tutorial - Bahasa Indonesia](https://www.youtube.com/playlist?list=PL-CtdCApEFH-0i9dzMzLw6FKVrFWv3QvQ) - Eko Kurniawan Khannedy, Programmer Zaman Now (YouTube)
+* [Tutorial Golang Fundamental Bahasa Indonesia](https://www.youtube.com/watch?v=xzNT4JywW0A) - Agung Setiawan
+* [Tutorial Golang Web API Bahasa Indonesia - Full Course](https://www.youtube.com/watch?v=GjI0GSvmcSU) - Agung Setiawan
+* [Tutorial Golang Website Development Bahasa Indonesia](https://www.youtube.com/watch?v=K76y2_ZQYwY) - Agung Setiawan
 
 
 ### Gradle
@@ -312,7 +315,9 @@
 * [OpenCV untuk Pemula](https://www.youtube.com/playlist?list=PLl-Zj2iuqlwt4cBsBy_Ej7gNlXdQ7blCB) - NgodingPython
 * [Tutorial Belajar Python Pandas](https://www.youtube.com/playlist?list=PL2O3HdJI4voGdD_9xhVCTBoDTDNHpajm5) - Indonesia Belajar
 * [Tutorial Python Bahasa Indonesia](https://www.youtube.com/playlist?list=PLCZlgfAG0GXDc9Wcsi2fUn0pAr41GDL6m) - Sekolah Koding
+* [Tutorial Python Beginner Bahasa Indonesia](https://www.youtube.com/watch?v=rWC2iFlN3TM) - Agung Setiawan
 * [Tutorial Python GUI dengan TKinter](https://www.youtube.com/playlist?list=PL2O3HdJI4voHjX09IpdsiSBNnLRaR-CbJ) - Indonesia Belajar
+* [Tutorial Python OOP Object Oriented Programming Bahasa Indonesia - Full Course](https://www.youtube.com/watch?v=b6Y5CzFM0Oc) - Agung Setiawan
 * [Visualisasi Data dalam Pemrograman Python (Matplotlib)](https://www.youtube.com/playlist?list=PL2O3HdJI4voHrfoMFvkDeblmjarDN8nC8) - Indonesia Belajar