[skip ci] Update README.md

Author: kyoshino

README.md

@@ -615,7 +615,7 @@ These Netlify/Decap CMS features are not yet implemented in Sveltia CMS. We are
 - [Cloudinary](https://decapcms.org/docs/cloudinary/) and [Uploadcare](https://decapcms.org/docs/uploadcare/) media libraries ([#4](https://github.com/sveltia/sveltia-cms/discussions/4))
 - LineString and Polygon types for the [Map](https://decapcms.org/docs/widgets/#map) widget
 - [Custom widgets](https://decapcms.org/docs/custom-widgets/)
-- [Custom editor components](https://decapcms.org/docs/custom-widgets/#registereditorcomponent): Support for preview, Object/List widgets, and the `default` field option, various bug fixes
+- [Custom editor components](https://decapcms.org/docs/custom-widgets/#registereditorcomponent): Support for preview, widgets with complex values (Code with `output_code_only:false`, Hidden, KeyValue, List, Object, Select/Relation with `multiple:true`), as well as the `default` field option, [multiline components](https://github.com/sveltia/sveltia-cms/issues/410) and [inline components](https://github.com/sveltia/sveltia-cms/issues/460)
 - [Custom preview templates](https://decapcms.org/docs/customization/#registerpreviewtemplate) ([#51](https://github.com/sveltia/sveltia-cms/issues/51))
 - [Event hooks](https://decapcms.org/docs/registering-events/) ([#167](https://github.com/sveltia/sveltia-cms/issues/167))