Improve description of service spans scope

Author: maarcingebala

docs/setup/telemetry.mdx

@@ -31,12 +31,10 @@ Saleor implements two distinct scopes for traces:
 - **CORE**: For internal system operations and core functionality
 - **SERVICE**: For business logic and service-level operations
 
-What is being traced:
+What is being traced at the **SERVICE** level:
 
-- **HTTP requests** including their duration, full URL, request method, client's IP address, and length of response.
+- **HTTP requests** including their duration, full URL, request method, client's IP address, and length of response. This includes requests to Saleor's GraphQL API and requests to external services (Saleor Apps, custom apps) via sync webhooks.
 - **GraphQL queries** including their duration, query string, and execution errors.
-- **GraphQL resolvers** including their duration, field name, parent type, and execution errors.
-- **Database queries** including their duration and the SQL statement.
 
 ### Metrics