Update docs/platforms/apple/common/usage/distributed-tracing/index.mdx

Co-authored-by: Liza Mock <[email protected]>

docs/platforms/apple/common/usage/distributed-tracing/index.mdx

@@ -42,7 +42,7 @@ headers to all outgoing requests whose destination contains a string in the list
 
 **The `tracePropagationTargets` option matches the entire request URL, not just the domain. Using stricter regex to match certain parts of the URL ensures that requests don't unnecessarily have additional headers attached.**
 
-The default value of `tracePropagationTargets` is `['.*']`. This means that by default, tracing headers are attached to all requests.
+Since the value of `tracePropagationTargets` is `['.*']` by default, tracing headers are attached to all requests unless otherwise specified.
 
 ```swift {tabTitle:Swift}
 import Sentry