SETTING UP AN NGINX WEB SERVER ON A RASPBERRY PI says
"NGINX defaults its web page location to /usr/share/nginx/www on Raspbian."
in my case there is no /usr/share/nginx/www but /usr/share/nginx/html/index.html
so I change the contents of /usr/share/nginx/html/index.html . then I open my pi web. the contents of web has no change. why?