Align default language

fcollonval · web-flow · commit e8b73b73a80f · 2025-02-21T16:19:31.000+01:00
diff --git a/jupyterlab_server/templates/index.html b/jupyterlab_server/templates/index.html
@@ -4,7 +4,7 @@
 -->
 
 <!doctype html>
-<html lang="en">
+<html lang="en-US">
   <head>
     <meta charset="utf-8" />
     <title>{% block title %}{{page_title | escape }}{% endblock %}</title>
