Replace SimpleMDE with custom Markdown editor

app/Template/comment/edit.php

@@ -3,21 +3,12 @@
 </div>
 
 <form class="popover-form" method="post" action="<?= $this->url->href('CommentController', 'update', array('task_id' => $task['id'], 'project_id' => $task['project_id'], 'comment_id' => $comment['id'])) ?>" autocomplete="off">
-
     <?= $this->form->csrf() ?>
     <?= $this->form->hidden('id', $values) ?>
     <?= $this->form->hidden('task_id', $values) ?>
     <?= $this->form->hidden('user_id', $values) ?>
 
-    <div class="markdown-editor-small">
-        <?= $this->form->textarea(
-            'comment',
-            $values,
-            $errors,
-            array('autofocus', 'required', 'placeholder="'.t('Leave a comment').'"'),
-            'markdown-editor'
-        ) ?>
-    </div>
+    <?= $this->form->textEditor('comment', $values, $errors, array('autofocus' => true, 'required' => true)) ?>
 
     <div class="form-actions">
         <button type="submit" class="btn btn-blue"><?= t('Save') ?></button>