Remove non-working demo link

README.md

@@ -552,7 +552,7 @@ See https://github.com/n1trux/awesome-sysadmin#dns
 
 - [CUPS](https://www.cups.org/) - The Common Unix Print System uses Internet Printing Protocol (IPP) to support printing to local and network printers. ([Source Code](https://www.cups.org/software.php)) `GPL-2.0` `C`
 - [EdPaper](https://github.com/Edraens/EdPaper) - PDF organizer with users management. `MIT` `PHP`
-- [Mayan EDMS](http://www.mayan-edms.com) - Free Open Source Electronic Document Management System. An electronic vault for your documents with preview generation, OCR, and automatic categorization among other features. ([Demo](http://demo.mayan-edms.com), [Source Code](https://gitlab.com/mayan-edms/mayan-edms)) `Apache-2.0` `Python`
+- [Mayan EDMS](http://www.mayan-edms.com) - Free Open Source Electronic Document Management System. An electronic vault for your documents with preview generation, OCR, and automatic categorization among other features. ([Source Code](https://gitlab.com/mayan-edms/mayan-edms)) `Apache-2.0` `Python`
 - [Paperless](https://github.com/danielquinn/paperless) - Scan, index, and archive all of your paper documents. `GPL-3.0` `Python`
 - [SANE Network Scanning](http://sane-project.org/) - Allow remote clients to access image acquisition devices (scanners) available on the local host. ([Source Code](http://www.sane-project.org/cvs.html)) `GPL-2.0` `C`