Apply suggestion from @coolguyzone

Co-authored-by: Alex Krawiec <[email protected]>

Author: lcian

develop-docs/sdk/data-model/event-payloads/contexts.mdx

@@ -805,7 +805,7 @@ This is mostly set on transactions in a web server environment where one transac
 
 `headers`
 
-: _Optional_. A dictionary of submitted headers. If a header appears multiple times it, needs to be merged according to the HTTP standard for header merging. Header names are treated case-insensitively by Sentry.
+: _Optional_. A dictionary of submitted headers. If a header appears multiple times it, needs to be merged according to the HTTP standard for header merging. Sentry treats header names as case-insensitive.
 
 - Example: `[["Content-Type", "text/plain"]]`