Mise à jour de 'README.md'

README.md

@@ -62,12 +62,15 @@ Franck_
 <br><br>
 ## Web / Network applications
 
-#### Communication & Collaboration
+#### Collaboration
+- [Mobilizon](https://joinmobilizon.org/fr/) : Event organisation and group management
+- [Nextcloud](https://nextcloud.com) : File hosting and collaboration tools 
+
+#### Communication
 - [BigBlueButton](https://bigbluebutton.org) : Videoconference developed for distance learning, with slide presentation, _whiteboard_ and polling
 - [Jitsi](https://jitsi.org) : « _Open source alternative to Zoom&trade;_ » with instant messaging, voice over IP, video conferencing and end-to-end encryption
 - [Matrix](https://matrix.org) :  Open standard for interoperable, decentralised and real-time (also audio/video) chat communication
-- [Mattermost](https://mattermost.com) : Free, self-hosted instant messaging dedicated to organisations or companies
-- [Mobilizon](https://joinmobilizon.org) : Event organisation and group management 
+- [Mattermost](https://mattermost.com) : Free, self-hosted instant messaging dedicated to organisations or companies 
 
 #### Design
 - [Penpot](https://penpot.app) : Open source design and prototyping platform