Remove FileShelter demo - Dead Link

README.md

@@ -905,7 +905,7 @@ _Related: [Groupware](#groupware)_
 - [Coquelicot](https://coquelicot.potager.org/) - Coquelicot is a “one-click” file sharing web application with a focus on protecting users’ privacy. ([Source Code](https://coquelicot.potager.org/dist/coquelicot-0.9.6.tar.gz)) `AGPL-3.0` `Ruby`
 - [elixire](https://elixi.re) - Simple yet advanced screenshot uploading and link shortening service. ([Source Code](https://gitlab.com/elixire/elixire), [Clients](https://gitlab.com/elixire/elixiremanager)) `AGPL-3.0` `Python`
 - [Files Sharing](https://github.com/axeloz/filesharing) - Open Source and self-hosted files sharing application based on unique and temporary links. `GPL-3.0` `PHP`
-- [FileShelter](https://github.com/epoupon/fileshelter) - FileShelter is a self-hosted software that allows you to easily share files over the Internet. ([Demo](https://fileshelter.demo.poupon.io/)) `GPL-3.0` `C++`
+- [FileShelter](https://github.com/epoupon/fileshelter) - FileShelter is a self-hosted software that allows you to easily share files over the Internet. `GPL-3.0` `C++`
 - [FireShare](https://github.com/rockmanvnx6/FireShare) - A full-stack, pub-sub, real-time secure file sharing system. ([Demo](https://auspham.dev/FireShare)) `MIT` `Nodejs`
 - [Gokapi](https://github.com/Forceu/gokapi) - Lightweight server to share files, which expire after a set amount of downloads or days. Similar to the discontinued Firefox Send, with the difference that only the admin is allowed to upload files. `GPL-3.0` `Go`
 - [goploader](https://github.com/Depado/goploader) - Easy file sharing with server-side encryption, curl/httpie/wget compliant. `MIT` `Go`