Update nginx.conf (#6025)

Performance issue. Add nodelay to avoid nginx to wait to be forward
https://www.nginx.com/blog/rate-limiting-nginx/

aspnetcore/host-and-deploy/linux-nginx/nginx.conf

@@ -38,7 +38,7 @@ http {
         #Redirects all traffic
         location / {
             proxy_pass  http://hellomvc;
-            limit_req   zone=one burst=10;
+            limit_req   zone=one burst=10 nodelay;
         }
     }
 }