Merge pull request #7033 from kenjis/fix-comment-config-migrations

docs: fix comment for Migrations Timestamp Format

Author: kenjis

app/Config/Migrations.php

@@ -42,9 +42,12 @@ class Migrations extends BaseConfig
      *
      * This is the format that will be used when creating new migrations
      * using the CLI command:
-     *   > php spark migrate:create
+     *   > php spark make:migration
      *
-     * Typical formats:
+     * Note: if you set an unsupported format, migration runner will not find
+     *       your migration files.
+     *
+     * Supported formats:
      * - YmdHis_
      * - Y-m-d-His_
      * - Y_m_d_His_