added viewport meta tag

views/head.pug

@@ -1,6 +1,7 @@
+meta(name='viewport' content='width=device-width, initial-scale=1.0')
+
 style: include css/modest.css
 style: include css/dracula.highlight.js.css
-style: include css/font.css
 
 script(src='https://cdn.jsdelivr.net/npm/darkreader@4/darkreader.min.js')
 script(src='https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@10.7.1/build/highlight.min.js')