module.md: add "Storing a reference to a Module"

topics/intro/content_updates.md

@@ -1,7 +1,7 @@
-# Content Updates
-
 <!-- Copyright 2000-2023 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license. -->
 
+# Content Updates
+
 <link-summary>Notable updates and additions to this documentation.</link-summary>
 
 This page lists notable additions and updates to the SDK documentation and [](code_samples.md).
@@ -18,6 +18,10 @@ See [GitHub Changelog](https://github.com/JetBrains/intellij-sdk-docs/commits/ma
 Kotlin Persisting State Component
 : Add an [example](persisting_state_of_components.md#implementing-the-persistentstatecomponent-interface) of a persistent state component implemented in Kotlin.
 
+Minor Changes and Additions
+:
+- Add section [](module.md#storing-a-reference-to-a-module).
+
 ### September
 {#september-23}
 

topics/reference_guide/project_model/module.md

@@ -113,6 +113,11 @@ String moduleName = module == null ? "Module not found" : module.getName();
 
 * To get the project module to which the specified [PSI element](psi_elements.md) belongs, use the `ModuleUtil.findModuleForPsiElement()` method.
 
+### Storing a reference to a Module
+
+Use [`ModulePointer`](%gh-ic%/platform/projectModel-api/src/com/intellij/openapi/module/ModulePointer.java) to store a reference to a `Module` by its instance or name.
+A removal or rename of the `Module` will be tracked automatically.
+
 ### Accessing Module Roots
 
 Information about module roots can be accessed via [`ModuleRootManager`](%gh-ic%/platform/projectModel-api/src/com/intellij/openapi/roots/ModuleRootManager.java).