Fixed enginx example

doc/nginx-example.conf

@@ -32,9 +32,16 @@ server {
     # access_log /var/log/nginx/avatar main;
     error_log /var/log/nginx/avatar warn;
 
+    expires 86400;
+    add_header Cache-Control "public, max-age=86400" always;
+
     location / {
         include /etc/nginx/fastcgi_params;
         fastcgi_pass    unix:/var/run/cgi-fcgiwrap.socket-1;
         fastcgi_param SCRIPT_FILENAME /usr/bin/libravatarserv;
+
+        # fastcgi_param LIBRAVATARSERV_DEFAULT_FALLBACK 404;
+        # fastcgi_param LIBRAVATARSERV_REDIRECT_NOFALLBACK 0;
+        # fastcgi_param LIBRAVATARSERV_REDIRECT_NOUSER 0;
     }
 }