updates Kotlin main page for KMP

Author: Karl Heinz Struggl

docs/platforms/kotlin/index.mdx

@@ -2,8 +2,6 @@
 title: Kotlin
 caseStyle: camelCase
 supportLevel: production
-sdk: sentry.java
-fallbackPlatform: java
 categories:
   - mobile
   - desktop
@@ -12,13 +10,13 @@ keywords:
   - kotlin
 ---
 
-Sentry supports JVM related use of Kotlin with our [Java](/platforms/java) SDK, and, for Android applications, with our [Android](/platforms/android) platform.
+Sentry supports JVM related use of Kotlin with the [Java](/platforms/java) SDK. For native Android applications, use the [Android](/platforms/android) SDK. If you use KMP, the [Kotlin Multiplatform](/platforms/kotlin/guides/kotlin-multiplatform/) SDK provides the best integration.
 
 Select your platform to get started:
 
 - [Java](/platforms/java)
 - [Android](/platforms/android)
-- [Kotlin Multiplatform](/platforms/kotlin-multiplatform)
+- [Kotlin Multiplatform](/platforms/kotlin/guides/kotlin-multiplatform/)
 
 ## Kotlin Extensions