add more detail

Author: nikkikapadia

.github/CODEOWNERS

@@ -366,8 +366,9 @@ tests/sentry/api/endpoints/test_organization_attribute_mappings.py          @get
 /static/app/utils/timeSeries/                                             @getsentry/data-browsing
 ## Endof Visibility
 
-## Visibility Migration Tests
+## Data Browsing Migration Tests
 /tests/sentry/migrations/test_1064_discover_to_explore_queries_self_hosted.py @getsentry/data-browsing
+## End of Data Browsing Migration Tests
 
 
 ## Profiling