new pro demo.

Author: b4rtaz

README.md

@@ -42,6 +42,7 @@ Pro:
 * [🤩 Pro Components](https://nocode-js.com/examples/sequential-workflow-designer-pro/webpack-pro-app/public/pro-components.html)
 * [🍬 Custom Theme Flat](https://nocode-js.com/examples/sequential-workflow-designer-pro/webpack-pro-app/public/custom-theme-flat.html)
 * [🌹 Custom Step Types](https://nocode-js.com/examples/sequential-workflow-designer-pro/webpack-pro-app/public/custom-step-types.html)
+* [📺 Popup Editor](https://nocode-js.com/examples/sequential-workflow-designer-pro/webpack-pro-app/public/popup-editor.html)
 * [👈 Goto](https://nocode-js.com/examples/sequential-workflow-designer-pro/webpack-pro-app/public/goto.html)
 * [📁 Folders](https://nocode-js.com/examples/sequential-workflow-designer-pro/webpack-pro-app/public/folders.html)
 * [⭕ Wheel Mode](https://nocode-js.com/examples/sequential-workflow-designer-pro/webpack-pro-app/public/wheel-mode.html)