Update url.md

adding heading id

Author: pakud

docs/en/sql-reference/table-functions/url.md

@@ -78,7 +78,7 @@ SELECT * from url('http://data/path/date=*/country=*/code=*/*.parquet') where _d
 - [engine_url_skip_empty_files](/operations/settings/settings.md#engine_url_skip_empty_files) - allows to skip empty files while reading. Disabled by default.
 - [enable_url_encoding](/operations/settings/settings.md#enable_url_encoding) - allows to enable/disable decoding/encoding path in uri. Enabled by default.
 
-## Permissions
+## Permissions {#storage-settings}
 
 `url` function requires `CREATE TEMPORARY TABLE` permission. As such - it'll not work for users with [readonly](/operations/settings/permissions-for-queries#readonly) = 1 setting. At least readonly = 2 is required.