Merge pull request #3836 from infinitepower18/update

Add Kotlin Multiplatform

Author: underwoo16

topics/kotlin-multiplatform/index.md

@@ -0,0 +1,9 @@
+---
+created_by: JetBrains
+display_name: Kotlin Multiplatform
+short_description: Kotlin Multiplatform is a cross platform development framework developed by JetBrains.
+topic: kotlin-multiplatform
+related: kotlin
+url: https://kotlinlang.org/lp/multiplatform/
+---
+The Kotlin Multiplatform technology simplifies the development of cross-platform projects across iOS, Android, desktop and the web. It reduces time spent writing and maintaining the same code for different platforms while retaining the flexibility and benefits of native programming.