add a diagram on how to use hf:// in duckdb (#1319)

docs/hub/datasets-duckdb.md

@@ -3,6 +3,10 @@
 [DuckDB](https://github.com/duckdb/duckdb) is an in-process SQL [OLAP](https://en.wikipedia.org/wiki/Online_analytical_processing) database management system.
 You can use the Hugging Face paths (`hf://`) to access data on the Hub:
 
+<div class="flex justify-center">
+<img src="https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/hub/duckdb_hf_url.png"/>
+</div>
+
 The [DuckDB CLI](https://duckdb.org/docs/api/cli/overview.html) (Command Line Interface) is a single, dependency-free executable. 
 There are also other APIs available for running DuckDB, including Python, C++, Go, Java, Rust, and more. For additional details, visit their [clients](https://duckdb.org/docs/api/overview.html) page.