Add RERO ILS to Enterprise-class library management software

README.md

@@ -654,6 +654,7 @@ _Enterprise-class library management software._
 
 - [Evergreen](https://evergreen-ils.org) - Highly-scalable software for libraries that helps library patrons find library materials, and helps libraries manage, catalog, and circulate those materials. ([Source Code](https://github.com/evergreen-library-system/Evergreen)) `GPL-2.0` `PL/pgSQL`
 - [Koha](https://koha-community.org/) - Enterprise-class ILS with modules for acquisitions, circulation, cataloging, label printing, offline circulation for when Internet access is not available, and much more. ([Demo](https://koha-community.org/demo/), [Source Code](https://github.com/Koha-Community/Koha)) `GPL-3.0` `Perl`
+- [RERO ILS](https://rero21.ch/) - Large-scale ILS that can be run as a service with consortial features, intended primarily for library networks. Includes most standard modules (circulation, acquisitions, cataloging,...) and a web-based public and professionnal interface. ([Demo](https://ils.test.rero.ch/), [Source Code](https://github.com/rero/rero-ils)) `AGPL-3.0` `Python/Other`
 
 _Institutional repository and digital library software._