add link to cheatsheets (EbookFoundation#4582)

* add link to cheatsheets

* fix ordering in courses-id

Author: eshellman

README.md

@@ -61,6 +61,11 @@ Please read [CONTRIBUTING](/CONTRIBUTING.md). If you're new to GitHub, [welcome]
 + [Turkish / Türkçe](free-programming-books-tr.md)
 + [Ukrainian / Українська](free-programming-books-ua.md)
 
+### Cheat Sheets
+
++ [All Languages](free-programming-cheatsheets.md)
+
+
 ### Free Online Courses
 
 + [Bulgarian / български](free-courses-bg.md)

free-courses-id.md

@@ -14,9 +14,9 @@
 * [Java](#java)
   * [Spring](#spring)
 * [JavaScript](#javascript)
+  * [Angular](#angular)
   * [React](#react)
   * [Vue](#vue)
-  * [Angular](#angular)
 * [Kotlin](#kotlin)
 * [Kubernetes](#kubernetes)
 * [Linux](#Linux)
@@ -128,6 +128,11 @@
 * [Main Main JavaScript](https://www.youtube.com/playlist?list=PLCZlgfAG0GXCyd70hT8jYl24bLuPpH9iR) - Sekolah Koding
 
 
+### Angular
+
+* [Tutorial AngularJS Indonesia](https://www.youtube.com/playlist?list=PLohWNsc-n1L-3ffIaGRAjbTQm7bh9F9FG) - Windu Purnomo
+
+
 ### React
 
 * [Belajar ReactJS Bahasa Indonesia](https://www.youtube.com/playlist?list=PLCZlgfAG0GXALZIcEe2t3XVuQ50JYbsbA) - Sekolah Koding
@@ -142,11 +147,6 @@
 * [Tutorial VueJs dengan API Bahasa Indonesia](https://www.youtube.com/playlist?list=PLIan8aHxsPj3a7oLHb2a8pw8IHBq45WYu) - Wahidev Academy
 
 
-### Angular
-
-* [Tutorial AngularJS Indonesia](https://www.youtube.com/playlist?list=PLohWNsc-n1L-3ffIaGRAjbTQm7bh9F9FG) - Windu Purnomo
-
-
 ### Kotlin
 
 * [Belajar Kotlin Collection](https://www.youtube.com/playlist?list=PL-CtdCApEFH-aC-35fw5qrr6DZ-qMzmRr) - Programmer Zaman Now