Update docs/product/tracing/index.mdx

Author: lizokm

docs/product/tracing/index.mdx

@@ -4,7 +4,7 @@ sidebar_order: 20
 description: "Learn how instrumenting tracing for both your frontend and backend can help identify and debug application performance issues. Distributed tracing will allow you to see the impact of errors across your full stack and microservices."
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-## Tracing
+## What's Tracing?
 
 Tracing is the process of capturing the timing and flow of requests and operations as they happen in your application. It's a powerful debugging tool, helping you identify which link in a sequence of events may be causing a problem, such as slow performance.