kotlin.md: update links

topics/tutorials/kotlin.md

@@ -5,12 +5,12 @@
 ## Why Kotlin?
 
 Using Kotlin to write plugins for the IntelliJ Platform is very similar to writing plugins in Java.
-Existing plugin developers can get started by converting boilerplate Java classes to their Kotlin equivalents by using the [J2K compiler](https://kotlinlang.org/docs/tutorials/mixing-java-kotlin-intellij.html#converting-an-existing-java-file-to-kotlin-with-j2k) bundled with the IntelliJ Platform (versions 143.+), and developers can easily mix and match Kotlin classes with their existing Java code.
+Existing plugin developers can get started by converting boilerplate Java classes to their Kotlin equivalents by using the [J2K compiler](https://kotlinlang.org/docs/mixing-java-kotlin-intellij.html#converting-an-existing-java-file-to-kotlin-with-j2k) bundled with the IntelliJ Platform (versions 143.+), and developers can easily mix and match Kotlin classes with their existing Java code.
 
-In addition to [null safety](https://kotlinlang.org/docs/reference/null-safety.html) and [type-safe builders](https://kotlinlang.org/docs/reference/type-safe-builders.html), the Kotlin language offers many convenient features for plugin development, which make plugins easier to read and simpler to maintain.
-Much like [Kotlin for Android](https://kotlinlang.org/docs/tutorials/kotlin-android.html), the IntelliJ Platform makes extensive use of callbacks, which are easy to express as [lambdas](https://kotlinlang.org/docs/reference/lambdas.html) in Kotlin.
+In addition to [null safety](https://kotlinlang.org/docs/null-safety.html) and [type-safe builders](https://kotlinlang.org/docs/type-safe-builders.html), the Kotlin language offers many convenient features for plugin development, which make plugins easier to read and simpler to maintain.
+Much like [Kotlin for Android](https://kotlinlang.org/docs/android-overview.html), the IntelliJ Platform makes extensive use of callbacks, which are easy to express as [lambdas](https://kotlinlang.org/docs/lambdas.html) in Kotlin.
 
-Likewise, it is easy to customize the behavior of internal classes in IntelliJ IDEA, with [extensions](https://kotlinlang.org/docs/reference/extensions.html).
+Likewise, it is easy to customize the behavior of internal classes in IntelliJ IDEA, with [extensions](https://kotlinlang.org/docs/extensions.html).
 For example, it is common practice to [guard logging statements](https://www.slf4j.org/faq.html#logging_performance) to avoid the cost of parameter construction, leading to the following ceremony when using the log:
 
 ```java
@@ -41,11 +41,11 @@ To learn more about building IntelliJ Platform plugins with Kotlin, this tutoria
 
 Plugins targeting the IntelliJ Platform versions 143 and above are easy to migrate: just start writing Kotlin.
 The IDE already bundles the necessary Kotlin plugins and libraries, requiring no further configuration.
-For detailed instructions, please refer to the [Kotlin documentation](https://kotlinlang.org/docs/tutorials/getting-started.html).
+For detailed instructions, please refer to the [Kotlin documentation](https://kotlinlang.org/docs/getting-started.html).
 
 ## Kotlin Gradle Plugin
 
-For plugins already using the [Gradle Build System](gradle_build_system.md), or those that require precise control over the Kotlin build process, we recommend using the [kotlin-gradle-plugin](https://kotlinlang.org/docs/reference/using-gradle.html#configuring-dependencies).
+For plugins already using the [Gradle Build System](gradle_build_system.md), or those that require precise control over the Kotlin build process, we recommend using the [kotlin-gradle-plugin](https://kotlinlang.org/docs/gradle.html#configuring-dependencies).
 This [Gradle plugin](https://mvnrepository.com/artifact/org.jetbrains.kotlin/kotlin-gradle-plugin-core) greatly simplifies building Kotlin projects in a controlled and reproducible manner.
 
 Your `build.gradle` file may look like so:
@@ -94,9 +94,9 @@ Starting with 4.4, Gradle supports `build.gradle.kts`, an alternative to `build.
 
 There are many good resources for learning how to write build scripts for an IntelliJ plugin with Kotlin script, like
 [intellij-rust](https://github.com/intellij-rust/intellij-rust/blob/master/build.gradle.kts),
-[julia-intellij](https://github.com/ice1000/julia-intellij/blob/master/build.gradle.kts),
+[julia-intellij](https://github.com/JuliaEditorSupport/julia-intellij/blob/master/build.gradle.kts),
 [covscript-intellij](https://github.com/covscript/covscript-intellij/blob/master/build.gradle.kts) or
-[zig-intellij](https://github.com/ice1000/zig-intellij/blob/master/build.gradle.kts).
+[zig-intellij](https://github.com/ice1000/intellij-zig/blob/master/build.gradle.kts).
 
 Additionally, explore IntelliJ Platform Explorer's [list of open-source plugins](https://jb.gg/ipe?buildSystem=gradle_kts) using Gradle KTS
 
@@ -142,7 +142,7 @@ intellij {
 ## UI in Kotlin
 
 The best way to create user interfaces with Kotlin is to use a [type safe DSL](kotlin_ui_dsl.md) for building forms.
-Using a GUI designer with Kotlin is currently [not supported](https://youtrack.jetbrains.com/issue/KT-6660).
+Using a GUI designer with Kotlin is currently [not supported](https://youtrack.jetbrains.com/issue/KTIJ-791).
 
 ## Handling Kotlin Code
 
@@ -153,9 +153,9 @@ Depending on exact functionality, a plugin can also target [UAST (Unified Abstra
 
 ## Caution
 
-Plugins *must* use Kotlin classes to implement declarations in the [plugin configuration file](plugin_configuration_file.md).
+Plugins *must* use [Kotlin classes](https://kotlinlang.org/docs/classes.html) to implement declarations in the [plugin configuration file](plugin_configuration_file.md).
 When registering an extension, the platform uses a dependency injection framework to instantiate these classes.
-For this reason, plugins *must not* use [Kotlin objects](https://kotlinlang.org/docs/reference/object-declarations.html) to implement any `plugin.xml` declarations.
+For this reason, plugins *must not* use [Kotlin objects](https://kotlinlang.org/docs/object-declarations.html) to implement any `plugin.xml` declarations.
 
 ## Examples