Update free-courses-id.md (#4274)

* Update free-courses-id.md

Add framework Codeigniter3

* Update free-courses-id.md

Hi there,

I deleted unnecessary rows.

Thanks.

* Update free-courses-id.md

Hi there,

I deleted unnecessary rows.

Thanks.

* Update free-courses-id.md

Ok,I have changed the link to "playlist".

Thanks.

free-courses-id.md

@@ -18,6 +18,7 @@
 * [Linux](#Linux)
 * [MongoDB](#mongodb)
 * [PHP](#php)
+  * [Codeigniter](#codeigniter)
   * [Laravel](#laravel)
 * [Python](#python)
   * [Django](#django)
@@ -155,6 +156,12 @@
 * [Tutorial CodeIgniter untuk pemula](https://www.youtube.com/playlist?list=PLCZlgfAG0GXCYh65VSFR2yzC7CuPBcAjt) - Sekolah Koding
 
 
+### Codeigniter
+
+* [Tutorial Codeigniter](https://www.youtube.com/playlist?list=PLce3Eyp7oY9_5lzhkUtrV6ygriYcttMlg) - Framework Indonesia
+* [Tutorial Sistem Informasi Akademik dengan Codeigniter](https://www.youtube.com/playlist?list=PLce3Eyp7oY9_hXzGACf988F1ojvQlYmB0) - Framework Indonesia
+
+
 ### Laravel
 
 * [Belajar Laravel 7 Dari Awal](https://www.youtube.com/playlist?list=PLRKMmwY3-5MxfIKTn_wZ49XlplwHtz1AV) - Parsinta