clarify

docs/database/supplementary-guidelines/migration-guide.md

@@ -41,7 +41,7 @@ to
 | `network.type`                                      | Removed                                                                                                     |
 | `db.name` → `db.namespace`                     |                                                                                                             |
 | `db.redis.database_index` → `db.namespace`     |                                                                                                             |
-| `db.mssql.instance_name`                            | Incorporated into the new `db.namespace`                                                                    |
+| `db.mssql.instance_name`                            | Removed, integrated into the new `db.namespace`                                                             |
 | `db.instance.id`                                    | Removed, replaced by `server.address` or `db.namespace` as appropriate                                      |
 | `db.statement` → `db.query.text`               | Clarified, SHOULD be collected by default only if there is sanitization that excludes sensitive information |
 | `db.operation` → `db.operation.name`           |                                                                                                             |