DDST-166: Update readme

dgi_actions.module

@@ -49,3 +49,4 @@ function dgi_actions_entity_delete(EntityInterface $entity) {
   $utils = \Drupal::service('dgi_actions.dgiutils');
   $utils->executeEntityReactions(EntityDeleteReaction::class, $entity);
 }
+

modules/dgi_actions_handle/README.md

@@ -16,6 +16,22 @@ Install as usual, see
 [this](https://www.drupal.org/docs/extending-drupal/installing-modules) for
 further information.
 
+## Features
+
+- Provides Action Plugins for minting and deleting Handle.net Handles.
+- Provides a service data type plugin for Handle.net Handles.
+- Uses uuid by default as handle suffix. Also supports custom suffixes.
+- Adds a unique constraint to the configured handle suffix field in an entity.
+- Prevents changes to the suffix field of a node.
+- Makes the suffix field non-editable if it has a value when editing a node.
+
+## Usage
+- See DGI Actions readme for general usage.
+- Create a new service data type with the type `handle`.
+- There is no UI for configuring the handle suffix field. It must be set in the
+  configuration file. The default suffix field is `uuid`.
+- Once the suffix field is set, the module will add a unique constraint to the
+  field in the entity schema and make sure that the field value is not changed.
 
 ## Troubleshooting/Issues