Mise à jour de 'README.md'

README.md

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 #### Mobile
 - [LineageOS](https://lineageos.org) : [AOSP](https://source.android.com) version of _Android™_, works perfectly without _Google™_ products (and with the [F-Droid](https://f-droid.org) application store)
+- [/e/OS](https://e.foundation/e-os/) : Another AOSP derivative, initiated by Gaël Duval (one of the founders of late [MandrakeLinux](https://en.wikipedia.org/wiki/Mandriva_Linux)), with a complete and « de-Googlized » ecosystem
 - [postmarketOS](https://postmarketos.org) : Very interesting and dynamic adaptation of **Linux** with several possible interfaces including **GNOME** or **Plasma**
 - [Mobian](https://mobian-project.org) : Mobile adaptation of **Debian**, slowly but surely progressing …
 - [Ubuntu Touch](https://ubuntu-touch.io) : After the withdrawal of _Canonical™_, [UBports](https://ubports.com) and its community have nicely taken over this mobile version of **Ubuntu**
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 #### Communication
 - [BigBlueButton](https://bigbluebutton.org) : Videoconference developed for distance learning, with slide presentation, _whiteboard_ and polling
+- [Jitsi](https://jitsi.org) is « _The open source alternative to Zoom™_ » : 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