Update CHANGELOG.md

Co-authored-by: Charly Gomez <charly.gomez@sentry.io>

Author: RulaKhaled

CHANGELOG.md

@@ -28,7 +28,7 @@ This PR implements consistent sampling across traces as outlined in ([#15754](ht
 - **feat(node): Add Prisma integration by default ([#16073](https://github.com/getsentry/sentry-javascript/pull/16073))**
 - **feat(react-router): Add client-side router instrumentation ([#16185](https://github.com/getsentry/sentry-javascript/pull/16185))**
 
-Adds client-side instrumentation for react router's `HydratedRouter`
+Adds client-side instrumentation for react router's `HydratedRouter`. To enable it, simply replace `browserTracingIntegration()` with `reactRouterTracingIntegration()` in your client-side init call.
 
 - **fix(node): Avoid double-wrapping http module ([#16177](https://github.com/getsentry/sentry-javascript/pull/16177))**