Add DuckDB UI

README.md

@@ -136,6 +136,7 @@ You can chat with this page's content on [HuggingChat](https://hf.co/chat/assist
 - [QuackDB](https://quackdb.com/) - Open-source online DuckDB SQL playground and editor.
 - [WhatTheDuck](https://whattheduck.incentius.com/) - WhatTheDuck is an open-source web application built on DuckDB. It allows users to upload CSV files, store them in tables, and perform SQL queries on the data.
 - [Sidequery](https://sidequery.ai) - Sidequery is a privacy-preserving DuckDB-powered query editor & data exploration tool for local & remote data.
+- [DuckDB UI](https://duckdb.org/docs/stable/extensions/ui) - A local web-based notebook interface for DuckDB.
 
 ### Backends