Update README.md

README.md

@@ -3,7 +3,11 @@ Programmatically add data from Advanced Custom Fields to the Wordpress REST API
 
 Simply install and activate the plugin. All existing and new ACF fields will be imported into the API.
 
-Compatible with ACF v5.5.12
+Any ACF fields added to posts, pages or categories will appear in the API at the usual endpoints (eg: /wp-json/wp/v2/posts).
+
+If you have custom post types or taxonomies and you have exposed them to the API using `show_in_rest => true`, any ACF fields will appear at their endpoints. For more info on exposing custom post types and taxonomies to the API (read here)[https://developer.wordpress.org/rest-api/extending-the-rest-api/adding-rest-api-support-for-custom-content-types/].
+
+Compatible with ACF v5.6.0
 
 
 <h2>Changelog</h2>
@@ -12,4 +16,4 @@ Compatible with ACF v5.5.12
 Initial commit</p>
 
 <p><strong>v1.1</strong> - 26.07.2017<br />
-Updates to namespace and function naming</p>
+Updates to namespace and function naming</p>