www: update checked html page (#3230)

After the switch to Next.js, `/home/www/nodejs/en/index.html` no longer exists.

Author: richardlau

ansible/www-standalone/resources/scripts/check-build-site.sh

@@ -11,4 +11,6 @@ indexjson=/home/dist/${site}/release/index.json
 indexhtml=/home/www/${site}/en/index.html
 buildsite=/home/nodejs/build-site.sh
 
-[ $indexjson -nt $indexhtml ] && $buildsite $site
+[ "X$site" = "Xnodejs" ] && indexhtml=/home/www/nodejs/en.html
+
+[ $indexjson -nt $indexhtml ] && $buildsite $site