add column description to questionnaire table

console/migrations/m231026_071555_add_column_description_to_questionnaire_table.php

@@ -0,0 +1,25 @@
+<?php
+
+use yii\db\Migration;
+
+/**
+ * Class m231026_071555_add_column_description_to_questionnaire_table
+ */
+class m231026_071555_add_column_description_to_questionnaire_table extends Migration
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function safeUp()
+    {
+        $this->addColumn('questionnaire', 'description', $this->string(255));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function safeDown()
+    {
+        $this->dropColumn('questionnaire', 'description');
+    }
+}