Update modules/ROOT/pages/creating-a-plugin.adoc

Co-authored-by: Millie <millie.macdonald@tiny.cloud>

Author: kemister85

modules/ROOT/pages/creating-a-plugin.adoc

@@ -1,7 +1,7 @@
 = Create a plugin for {productname}
 :navtitle: Create a plugin
 :description_short: Introducing plugin creation, with an example.
-:description: Create custom TinyMCE plugins using PluginManager.add, editor.ui.registry.addButton, and editor.addCommand. Register plugins, add toolbar buttons, and define commands.
+:description: Create custom TinyMCE plugins using PluginManager.add, and expand their functionality with custom toolbar buttons using editor.ui.registry.addButton, custom commands using editor.addCommand, and more.
 :keywords: plugin, plugin.js, plugin.min.js, tinymce.js, PluginManager, addButton, addCommand, custom plugin, toolbar button
 
 {productname} is designed to be easily extended by custom plugins; with APIs for registering custom plugins, and creating and localizing custom UI.