docs(modelql): added link to modelqlKotlinDir

Author: slisson

docs/global/modules/core/pages/howto/modelql.adoc

@@ -31,7 +31,7 @@ val result: List<String?> = client.getRootNode()!!.query {
 == Type-safe ModelQL API
 
 You can use the `model-api-gen-gradle` plugin to generate type safe extensions from your meta-model.
-Specify the `modelqlKotlinDir` property to enable the generation.
+Specify the link:../reference/component-model-api-gen-gradle.adoc#model-api-gen-gradle_attributes_modelqlKotlinDir[modelqlKotlinDir] property to enable the generation.
 
 [source,kotlin]
 --

docs/global/modules/core/pages/reference/component-model-api-gen-gradle.adoc

@@ -82,7 +82,7 @@ Inside of the `metamodel` block the following settings can be configured.
 |File
 |Target Kotlin directory of the generator
 
-|`modelqlKotlinDir`
+|`modelqlKotlinDir` [[model-api-gen-gradle_attributes_modelqlKotlinDir,modelqlKotlinDir]]
 |File
 |The generation of the ModelQL API is optional, because the output has a dependency on the ModelQL runtime.
  If this option is set, you have to add a dependency on `org.modelix:modelql-typed`.