Cache resources

nginx.conf

@@ -52,8 +52,13 @@ http {
             root   /usr/share/nginx/html;
             index  index.html index.htm;
 
+            location /res {
+                expires 1y;
+            }
+
             location ~ \.(png|jpe?g)$ {
                 try_files $uri$webp_suffix $uri =404;
+                expires 1y;
             }
         }