Replace deleted README demo script reference (#8492)

Copilot · youknowone · web-flow · commit 81df1ff12f5c · 2026-08-11T22:07:02.000+09:00
* Initial plan

* Fix stale README example

Assisted-by: Copilot: GPT-5.6

Co-authored-by: youknowone &lt;69878+youknowone@users.noreply.github.com&gt;

---------

Co-authored-by: copilot-swe-agent[bot] &lt;198982749+Copilot@users.noreply.github.com&gt;
Co-authored-by: youknowone &lt;69878+youknowone@users.noreply.github.com&gt;
diff --git a/README.md b/README.md
@@ -41,7 +41,7 @@ needed to prevent stack overflow on Windows):
 
 ```bash
 $ cd RustPython
-$ cargo run --release demo_closures.py
+$ cargo run --release -- -c 'print("Hello, RustPython!")'
 Hello, RustPython!
 ```
 
