nits and fixes

Author: sebastiancrossa

autotune/tuning/prompts.mdx

@@ -199,7 +199,3 @@ Once you've given a good amount of feedback on the incoming traffic for a given
 Once you've generated a new prompt, you can test it with various models and see how it performs against the feedback you've already given.
 
 <video src="/videos/auto-tuning-model-leaderboard.mp4" alt="Model leaderboard" controls muted playsInline loop preload="metadata" />
-
-## Integration with span feedback
-
-When you submit feedback for a completion that has an associated span (from automatic tracing), the feedback is automatically mirrored to the span. This enables integration with tuning datasets and advanced optimization workflows, ensuring your feedback is available wherever you need it.