update readme for extending section

Author: alina-tincas

14/umbraco-cms/extending/build-on-umbraco-functionality.md

@@ -16,11 +16,11 @@ All articles related to customizing and extending the Umbraco backoffice have be
 
 In this section, you can find resources to build and extend Umbraco CMS functionality.
 
-<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-cover data-type="files"></th></tr></thead><tbody><tr><td><strong>Backoffice Search</strong></td><td>Learn how to customize the built-in search functionality in the backoffice.</td><td><a href="../.gitbook/assets/healthchecks-image (1).png">healthchecks-image (1).png</a></td></tr><tr><td><strong>Packages</strong></td><td>Add your custom code into packages and distribute them to the rest of the Umbraco users.</td><td><a href="../.gitbook/assets/packages-image (1).png">packages-image (1).png</a></td></tr><tr><td><strong>Health Checks</strong></td><td>Learn about the health checks that you can run on your site to verify its state.</td><td><a href="../.gitbook/assets/controllers-image (1).png">controllers-image (1).png</a></td></tr></tbody></table>
+<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-cover data-type="files"></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><a href="backoffice-search.md"><strong>Backoffice Search</strong></a></td><td>Learn how to customize the built-in search functionality in the backoffice.</td><td></td><td><a href="../.gitbook/assets/healthchecks-image (1).png">healthchecks-image</a></td><td></td></tr><tr><td><a href="./packages/README.md"><strong>Packages</strong></a></td><td>Add your custom code into packages and distribute them to the rest of the Umbraco users.</td><td></td><td><a href="../.gitbook/assets/packages-image (1).png">packages-image</a></td><td></td></tr><tr><td><a href="./health-check/README.md"><strong>Health Checks</strong></a></td><td>Learn about the health checks that you can run on your site to verify its state.</td><td></td><td><a href="../.gitbook/assets/controllers-image (1).png">controllers-image</a></td><td></td></tr></tbody></table>
 
 ## Other ways to extend the Umbraco CMS backoffice
 
-* [Backoffice Search](backoffice-search.md)
+* [Embedded Media Providers](embedded-media-providers.md)
 * [Language files and localization](language-files/)
 
 ## Also in this section

15/umbraco-cms/extending/build-on-umbraco-functionality.md

@@ -16,11 +16,11 @@ All articles related to customizing and extending the Umbraco backoffice have be
 
 In this section, you can find resources to build and extend Umbraco CMS functionality.
 
-<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-cover data-type="files"></th></tr></thead><tbody><tr><td><strong>Backoffice Search</strong></td><td>Learn how to customize the built-in search functionality in the backoffice.</td><td><a href="../.gitbook/assets/healthchecks-image (1).png">healthchecks-image (1).png</a></td></tr><tr><td><strong>Packages</strong></td><td>Add your custom code into packages and distribute them to the rest of the Umbraco users.</td><td><a href="../.gitbook/assets/packages-image (1).png">packages-image (1).png</a></td></tr><tr><td><strong>Health Checks</strong></td><td>Learn about the health checks that you can run on your site to verify its state.</td><td><a href="../.gitbook/assets/controllers-image (1).png">controllers-image (1).png</a></td></tr></tbody></table>
+<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-cover data-type="files"></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><a href="backoffice-search.md"><strong>Backoffice Search</strong></a></td><td>Learn how to customize the built-in search functionality in the backoffice.</td><td></td><td><a href="../.gitbook/assets/healthchecks-image (1).png">healthchecks-image</a></td><td></td></tr><tr><td><a href="./packages/README.md"><strong>Packages</strong></a></td><td>Add your custom code into packages and distribute them to the rest of the Umbraco users.</td><td></td><td><a href="../.gitbook/assets/packages-image (1).png">packages-image</a></td><td></td></tr><tr><td><a href="./health-check/README.md"><strong>Health Checks</strong></a></td><td>Learn about the health checks that you can run on your site to verify its state.</td><td></td><td><a href="../.gitbook/assets/controllers-image (1).png">controllers-image</a></td><td></td></tr></tbody></table>
 
 ## Other ways to extend the Umbraco CMS backoffice
 
-* [Backoffice Search](backoffice-search.md)
+* [Embedded Media Providers](embedded-media-providers.md)
 * [Language files and localization](language-files/)
 
 ## Also in this section