remove pound (dead link/no such domain)

README.md

@@ -1620,7 +1620,6 @@ A [proxy](https://en.wikipedia.org/wiki/Proxy_server) is a server application th
 - [Outline Server](https://getoutline.org/) - A proxy server that runs a Shadowsocks instance for each access key and a REST API to manage the access keys. ([Source Code](https://github.com/Jigsaw-Code/outline-server)) `Apache-2.0` `Docker/Nodejs`
 - [PHP-Proxy](https://www.php-proxy.com/) - Web proxy script built specifically to be fast, easy to modify and to support video sites such as YouTube. ([Demo](https://unblockvideos.com/), [Source Code](https://github.com/Athlon1600/php-proxy-app)) `MIT` `PHP`
 - [Pomerium](https://www.pomerium.io) - An identity-aware reverse proxy, successor to now obsolete oauth_proxy. It inserts an OAuth step before proxying your request to the backend, so that you can safely expose your self-hosted websites to public Internet. ([Source Code](https://github.com/pomerium/pomerium)) `Apache-2.0` `Go`
-- [Pound](https://www.apsis.ch/pound.html) - Light-weight reverse proxy and load balancer for HTTP/HTTPS. `GPL-2.0` `C`
 - [Privoxy](https://www.privoxy.org) - Non-caching web proxy with advanced filtering capabilities for enhancing privacy, modifying web page data and HTTP headers, controlling access, and removing ads and other obnoxious Internet junk. `GPL-2.0` `C`
 - [Redbird](https://github.com/OptimalBits/redbird) - A modern reverse proxy for node that includes cluster, HTTP2, LetsEncrypt, and Docker support. `BSD-2-Clause` `Javascript`
 - [sish](https://github.com/antoniomika/sish) - Open source serveo/ngrok alternative providing HTTP(S)/WS(S)/TCP tunnels to localhost using only SSH. `MIT` `Go`