Issue #3349668: Tiny fix summary

README.md

+
+# Layout Disable
+
+The Layout Disable module provides an admin UI to disable unwanted layouts.
+
+For a full description of the module, visit the
+[project page](https://www.drupal.org/project/layout_disable).
+
+Submit bug reports and feature suggestions, or track changes in the
+[issue queue](https://www.drupal.org/project/issues/layout_disable).
+
+
+## Table of contents
+
+- Requirements
+- Installation
+- Configuration
+- Maintainers
+
+
+## Requirements
+
+No special requirements.
+
+
+## Installation
+
+Install as you would normally install a contributed Drupal module. For further
+information, see
+[Installing Drupal Modules](https://www.drupal.org/docs/extending-drupal/installing-drupal-modules).
+
+
+## Configuration
+
+1. Enable the module from extend.
+2. Go to configuration -> User Interfce -> Disable layouts,and select the layout you wish to disable.
+
+
+## Maintainers
+
+- Julian Pustkuchen - [Anybody](https://www.drupal.org/u/anybody)
+- Thomas Frobieter - [thomas.frobieter](https://www.drupal.org/u/thomasfrobieter)
+- Joshua Sedler - [Grevil](https://www.drupal.org/u/grevil)

README.txt

-The Layout Disable module provides an admin UI to disable unwanted layouts.

layout_disable.info.yml

@@ -2,6 +2,7 @@ name: 'Layout Disable'
 type: module
 description: Provides an user interface to disable unwanted core or contrib layouts.
 core_version_requirement: ^8.8 || ^9 || ^10
+configure: layout_disable
 package: Layout
 dependencies:
   - drupal:layout_discovery

layout_disable.install

@@ -13,6 +13,6 @@ function layout_disable_update_8001() {
   $config = $config_factory->getEditable('layout_disable.settings');
   $oldSettings = $config->get('layout_disable.settings.disabled_layouts');
   $config->set('disabled_layouts', $oldSettings)
-  ->clear('layout_disable')
-  ->save();
+    ->clear('layout_disable')
+    ->save();
 }

layout_disable.module

@@ -5,6 +5,8 @@
  * The layout disable module file.
  */
 
+use Drupal\Core\Routing\RouteMatchInterface;
+
 /**
  * Implements hook_layout_alter().
  */
@@ -19,3 +21,22 @@ function layout_disable_layout_alter(&$definitions) {
     }
   }
 }
+
+/**
+ * Implements hook_help().
+ */
+function layout_disable_help($route_name, RouteMatchInterface $route_match) {
+  switch ($route_name) {
+    // Main module help for the layout_disable module.
+    case 'help.page.layout_disable':
+      $output = '';
+      $output .= '<h3>' . t('About') . '</h3>';
+      $output .= '<p>' . t('Provides an admin UI (admin/config/user-interface/layout-disable)
+      to disable unwanted core or contrib layouts.') . '</p>';
+      $output .= '<p>' . t('Use case: You want to make certain layouts, e.g. added by core,
+      themes or modules unavailable to user selection / usage.') . '</p>';
+      $output .= '<p>' . t('After you disabled a layout it no longer appears in layout
+      listings.') . '</p>';
+      return $output;
+  }
+}