Add FileGator to `Web based file managers`

README.md

@@ -798,6 +798,7 @@ _See https://github.com/n1trux/awesome-sysadmin#distributed-filesystems_
 - [Encode Explorer](http://encode-explorer.siineiolekala.net/) - Encode Explorer is a single page file browser, it is simple and functional. ([Demo](http://encode-explorer.siineiolekala.net/explorer/index.php), [Source Code](https://github.com/marekrei/encode-explorer)) `MIT` `PHP`
 - [explorer](https://soyuka.github.io/explorer/) - Highly-configurable directory listing made with nodejs. ([Source Code](https://github.com/soyuka/explorer)) `MIT` `Nodejs`
 - [filebrowser](https://filebrowser.org/) - Web File Browser with a Material Design web interface. ([Source Code](https://github.com/filebrowser/filebrowser)) `Apache-2.0` `Go`
+- [FileGator](https://filegator.io/) - FileGator is a powerful multi-user file manager with a single page front-end. ([Demo](https://demo.filegator.io), ([Source Code](https://github.com/filegator/filegator)) `MIT` `PHP`
 - [Filestash](https://www.filestash.app/) - A web file manager that lets you manage your data anywhere it is located: FTP, SFTP, WebDAV, Git, S3, Minio, Dropbox, or Google Drive . ([Demo](https://demo.filestash.app/), [Source Code](https://github.com/mickael-kerjean/filestash)) `AGPL-3.0` `Go`
 - [goBrowser](https://github.com/xataz/gobrowser) - Simple http file browser. `GPL-3.0` `Go`
 - [Gossa](https://github.com/pldubouilh/gossa) - Gossa is a light and simple webserver for your files. `MIT` `Go`