default.html in jekyll-dash-1.5.0

- old
+ new

@@ -1,6 +1,6 @@
 <!DOCTYPE html>
-<html lang="{{ page.lang | default: site.lang | default: "en" }}">
+<html class="{% if site.dash.rtl %}direction--rtl{% else %}direction--ltr{% endif %}"lang="{{ page.lang | default: site.lang | default: "en" }}">
 
   {%- include head.html -%}
 
   <body>
 