Issue #3471998 - Fix spell

Related to #3471998

fapiv_example/src/Form/SimpleForm.php

@@ -38,7 +38,7 @@ class SimpleForm extends FormBase {
     $form['name'] = [
       '#type' => 'textfield',
       '#title' => $this->t('Name'),
-      '#description' => $this->t('The Value should be JonhDoe.'),
+      '#description' => $this->t('The Value should be JohnDoe.'),
       '#validators' => [
         ['rule' => 'length[7]', 'error' => 'Wrong name size of field %field.'],
         'custom_validator',