Update features list

README.md

@@ -10,12 +10,13 @@ Interactive web-based playground for computer vision and image processing, usefu
 - [OpenCV](https://docs.opencv.org/3.4.1/d5/d10/tutorial_js_root.html) is preloaded
 - You can import your images
 - Simple API for loading input images and displaying out images
+- Support for defining custom widgets that control function parameters in real time
 
 ## Planned Features
 
 In no particular order, here are some of the features planned:
 
-- Easy-to-setup UI widgets to control function parameters in real-time. They can be chained together to achieve complex transformation pipelines.
+- Full-feature custom widgets support, including creating pipelines, multiple control types, automatic data validation, multiple outputs, multiple sources, etc.
 - Support for Tensorflow.js
 - File library that supports importing multiple files
 - Load images/videos from the web