Add new Customizing articles to SUMMARY

14/umbraco-cms/SUMMARY.md

@@ -137,7 +137,7 @@
   * [Circular Dependencies](implementation/services/circular-dependencies.md)
 * [Unit Testing](implementation/unit-testing.md)
 
-## Customize the Backoffice <a href="#customizing" id="customizing"></a>
+## Customize the Backoffice
 
 * [Extend and customize the editing experience](customizing/extend-and-customize-editing-experience.md)
 * [Project Bellissima](customizing/project-bellissima.md)
@@ -162,6 +162,8 @@
   * [Extension Registry](customizing/extending-overview/extension-registry/README.md)
     * [Extension Registration](customizing/extending-overview/extension-registry/extension-registry.md)
     * [Extension Manifest](customizing/extending-overview/extension-registry/extension-manifest.md)
+  * [Extension Kind](customizing/extending-overview/extension-kind.md)
+  * [Extension Conditions](customizing/extending-overview/extension-conditions.md)
   * [Extension Types](customizing/extending-overview/extension-types/README.md)
     * [Menu](customizing/extending-overview/extension-types/menu.md)
     * [Header Apps](customizing/extending-overview/extension-types/header-apps.md)
@@ -174,6 +176,7 @@
     * [Kind](customizing/extending-overview/extension-types/kind.md)
     * [Backoffice Entry Point](customizing/extending-overview/extension-types/backoffice-entry-point.md)
     * [Extension Conditions](customizing/extending-overview/extension-types/condition.md)
+  * [Custom Extension types](customizing/extending-overview/custom-extension-type.md)
 * [Dashboards](customizing/dashboards.md)
 * [Sections & Trees](customizing/section-trees/README.md)
   * [Sections](customizing/section-trees/sections/README.md)
@@ -194,6 +197,7 @@
   * [Tracking References](customizing/property-editors/tracking.md)
   * [Content Picker Value Converter Example](customizing/property-editors/full-examples-value-converters.md)
   * [Property Dataset](customizing/property-editors/property-dataset.md)
+  * [Integrate Validaction](customizing/property-editors/integrate-validation.md)
 * [Backoffice Localization](customizing/ui-localization.md)
 * [Workspaces](customizing/workspaces/README.md)
   * [Workspace Context](customizing/workspaces/workspace-context.md)

14/umbraco-cms/customizing/extending-overview/custom-extension-type/custom-extension-type.md → 14/umbraco-cms/customizing/extending-overview/custom-extension-type.md

@@ -1,4 +1,4 @@
-# Custom Extension Type
+# Custom Extension Types
 
 The extension registry is an open system, which can hold any Extension Manifest Type. This article describes how you can declare your types.
 Types can be declared for re-useability/maintainability or to open up for other package extensions.

14/umbraco-cms/customizing/extending-overview/extension-conditions/extension-conditions.md → 14/umbraco-cms/customizing/extending-overview/extension-conditions.md

@@ -35,10 +35,6 @@ When declaring multiple conditions all of them must be permitted for the extensi
 
 ## Condition Configuration
 
-```html
-<a href="#using-conditions" id="using-conditions"></a>
-```
-
 The conditions are defined as an array of condition configurations. Each entry can contain the following properties:
 
 * `alias`- The alias of the condition to utilize.
@@ -49,5 +45,5 @@ The conditions are defined as an array of condition configurations. Each entry c
 Learn about built-in conditions and how to create your own:
 
 {% content-ref url="../extension-types/condition.md" %}
-[Condition Extension Type](../extension-types/condition.md)
+[Condition Extension Type](extension-types/condition.md)
 {% endcontent-ref %}

14/umbraco-cms/customizing/extending-overview/extension-kind/extension-kind.md → 14/umbraco-cms/customizing/extending-overview/extension-kind.md

@@ -51,5 +51,5 @@ const manifest = {
 Learn more about Kinds and how to create your own:
 
 {% content-ref url="../extension-types/kind.md" %}
-[Kind Extension Type](../extension-types/kind.md)
+[Kind Extension Type](extension-types/kind.md)
 {% endcontent-ref %}

14/umbraco-cms/customizing/property-editors/tracking.md

@@ -17,25 +17,25 @@ When a content node is saved it will save the entity references as relations.
 ### For Media Items
 
 1. Go to the **Media** section.
-2.  Select a media item and click the **Info** tab.
+2. Select a media item and click the **Info** tab.
 
-    ![Viewing media references](../../extending/property-editors/images/media-references.png)
+![Viewing media references](images/media-references.png)
 
 ### For Content Nodes
 
 1. Go to the **Settings** section.
-2.  Under the **Relations** from the **Advanced** section, select **Related Document** relations.
+2. Under the **Relations** from the **Advanced** section, select **Related Document** relations.
 
-    ![Viewing document references](../../extending/property-editors/images/document-references.png)
+![Viewing document references](images/document-references.png)
 
 ### For Data Types
 
 1. Go to the **Settings** section.
 2. Expand the **Data Types** folder.
 3. Select the **Data Type** you wish to view the references.
-4.  Navigate to the **Info** tab.
+4. Navigate to the **Info** tab.
 
-    ![Viewing Data Type references](../../extending/property-editors/images/data-types-references.png)
+![Viewing Data Type references](images/data-types-references.png)
 
 ## Example