Update dynamic-sampling-context.mdx

Author: cleptric

develop-docs/sdk/telemetry/traces/dynamic-sampling-context.mdx

@@ -171,7 +171,7 @@ Any values on the DSC should be propagated "as is" - this includes values like "
 SDKs should recognize incoming requests as "instrumented" or "traced" when at least one of the following applies:
 
 - The incoming request has a `sentry-trace` header
-- The incoming request has a `baggage` header containing one or more keys starting with "`sentry-`"
+- The incoming request has a `sentry-trace` header and `baggage` header containing one or more keys starting with "`sentry-`"
 
 After the DSC of a particular trace has been frozen, API calls like `set_user` should have no effect on the DSC.