docs: update demo video (#234)

docs/introduction.mdx

@@ -17,17 +17,9 @@ all the scenarios that matter for your application.
 
 ## Walk through
 
-Watch a 6 mins demo video showing how Empirical can run the [HumanEval benchmark](https://github.com/empirical-run/empirical/tree/main/examples/humaneval).
-
-<div style={{position: "relative", paddingBottom: "56.25%", height: 0}}>
-  <iframe src="https://www.loom.com/embed/5992fdf0edc443e282f44936e6c32672?sid=ac55c278-e1d9-4735-8840-214ed29d35f0"
-    frameborder="0"
-    webkitallowfullscreen
-    mozallowfullscreen
-    allowfullscreen
-    style={{position: 'absolute', top: 0, left: 0, width: '100%', height: '100%'}}>
-  </iframe>
-</div>
+Watch a demo video showing Empirical run a text-to-SQL example with [TypeScript config](./config/typescript).
+
+<iframe width="724" height="407" src="https://www.youtube.com/embed/p8gSGphcOSU" title="Empirical demo: Text-to-SQL evaluation with TypeScript" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
 
 ## Open source