docs: update README with asciinema URL

Author: koficodedat

README.md

@@ -413,7 +413,7 @@ Potential improvements for future versions:
 
 ![Demo](docs/demo.gif)
 
-**[▶ View interactive recording on asciinema.org](#)**
+**[▶ View interactive recording on asciinema.org](https://asciinema.org/a/0itnmL1VW1DHHO8CKI9NbKiEq)**
 
 > Try it online: [![Open in StackBlitz](https://developer.stackblitz.com/img/open_in_stackblitz.svg)](https://stackblitz.com/github/tuulbelt/tuulbelt/tree/main/structured-error-handler)