update bilingual

lib/views/admin/markdown.html

@@ -1,6 +1,7 @@
 {% extends '../layout/admin.html' %}
 
-{% block html_title %}Markdown設定 · {{ path }}{% endblock %}
+{% block html_title %}{{ t('Markdown settings') }}
+ · {{ path }}{% endblock %}
 
 {% block content_head %}
 <div class="header-wrap">