docs: update the comments in Cloud Bigtable RestoreTable API to reflect the new API capability

Committer: @liubonan
PiperOrigin-RevId: 372995286

Author: Google APIs

google/bigtable/admin/v2/bigtable_table_admin.proto

@@ -270,7 +270,7 @@ service BigtableTableAdmin {
   }
 
   // Create a new table by restoring from a completed backup. The new table
-  // must be in the same instance as the instance containing the backup.  The
+  // must be in the same project as the instance containing the backup.  The
   // returned table [long-running operation][google.longrunning.Operation] can
   // be used to track the progress of the operation, and to cancel it.  The
   // [metadata][google.longrunning.Operation.metadata] field type is
@@ -335,8 +335,8 @@ service BigtableTableAdmin {
 // [RestoreTable][google.bigtable.admin.v2.BigtableTableAdmin.RestoreTable].
 message RestoreTableRequest {
   // Required. The name of the instance in which to create the restored
-  // table. This instance must be the parent of the source backup. Values are
-  // of the form `projects/<project>/instances/<instance>`.
+  // table. This instance must be in the same project as the source backup.
+  // Values are of the form `projects/<project>/instances/<instance>`.
   string parent = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {