Improve task summary sections

app/Template/comments/create.php

@@ -0,0 +1,36 @@
+<form method="post" action="<?= $this->url->href('comment', 'save', array('task_id' => $task['id'], 'project_id' => $task['project_id'])) ?>" autocomplete="off">
+    <?= $this->form->csrf() ?>
+    <?= $this->form->hidden('task_id', $values) ?>
+    <?= $this->form->hidden('user_id', $values) ?>
+
+    <div class="form-tabs">
+        <ul class="form-tabs-nav">
+            <li class="form-tab form-tab-selected">
+                <i class="fa fa-pencil-square-o fa-fw"></i><a id="markdown-write" href="#"><?= t('Write') ?></a>
+            </li>
+            <li class="form-tab">
+                <a id="markdown-preview" href="#"><i class="fa fa-eye fa-fw"></i><?= t('Preview') ?></a>
+            </li>
+        </ul>
+        <div class="write-area">
+            <?= $this->form->textarea(
+                'comment',
+                $values,
+                $errors,
+                array(
+                    'required',
+                    'placeholder="'.t('Leave a comment').'"',
+                    'data-mention-search-url="'.$this->url->href('UserHelper', 'mention', array('project_id' => $task['project_id'])).'"',
+                ),
+                'comment-textarea'
+            ) ?>
+        </div>
+        <div class="preview-area">
+            <div class="markdown"></div>
+        </div>
+    </div>
+
+    <div class="form-actions">
+        <button type="submit" class="btn btn-blue"><?= t('Save') ?></button>
+    </div>
+</form>