Merge pull request #1100 from sharelatex/as-html-lang-attr

Add lang attribute to html tag

GitOrigin-RevId: ddc22ae6e742d9b501bac8d3c35d6640a7635b92

services/web/app/views/layout.pug

@@ -1,5 +1,9 @@
 doctype html
-html(itemscope, itemtype='http://schema.org/Product')
+html(
+	lang=(currentLngCode || 'en'),
+	itemscope,
+	itemtype='http://schema.org/Product'
+)
 	- metadata = metadata || {}
 	block vars