Update plugNmeet to Communication - Video Conferencing (#3188)

`plugNmeet` is web conferencing system including audio+video. So, `Video Conferencing` section will be more appropriate

README.md

@@ -342,7 +342,6 @@ Communication software using their own custom procols.
 - [ntfy](https://ntfy.sh/) - Push notifications to phone or desktop using HTTP PUT/POST, with Android app, CLI and web app, similar to Pushover and Gotify. ([Demo](https://ntfy.sh/app), [Source Code](https://github.com/binwiederhier/ntfy), [Clients](https://github.com/binwiederhier/ntfy-android)) `Apache-2.0/GPL-2.0` `Go`
 - [OTS](https://ots.fyi/) - One-Time-Secret sharing platform with a symmetric 256bit AES encryption in the browser. ([Source Code](https://github.com/Luzifer/ots)) `Apache-2.0` `Go`
 - [Papercups](https://papercups.io/) - An open source live customer chat web app written in Elixir. ([Demo](https://app.papercups.io/demo), [Source Code](https://github.com/papercups-io/papercups)) `MIT` `Elixir`
-- [plugNmeet](https://www.plugnmeet.org/) - Scalable, High Performance, Open source web conferencing system. ([Demo](https://demo.plugnmeet.com/login.html), [Source Code](https://github.com/mynaparrot/plugNmeet-server)) `MIT` `Docker/Go`
 - [PushBits](https://github.com/pushbits/server) - Self-hosted notification server for relaying push notifications via Matrix, similar to PushBullet and Gotify. `ISC` `Go`
 - [Rallly](https://rallly.co) - Rallly is an open-source alternative to Doodle that lets you create polls to vote on dates and times. ([Source Code](https://github.com/lukevella/Rallly)) `AGPL-3.0` `Nodejs`
 - [RetroShare](https://retroshare.cc) - Secured and decentralized communication system. Offers decentralized chat, forums, messaging, file transfer. ([Source Code](https://github.com/RetroShare/RetroShare)) `GPL-2.0` `C++`
@@ -590,6 +589,7 @@ _Related: [Conference Management](#conference-management)_
 - [Jitsi Video Bridge](https://jitsi.org/Projects/JitsiVideobridge) - WebRTC compatible Selective Forwarding Unit (SFU) that allows for multiuser video communication. ([Source Code](https://github.com/jitsi/jitsi-videobridge)) `Apache-2.0` `Java`
 - [Galene](https://galene.org/) - Galène (or Galene) is a videoconference server (an “SFU”) that is easy to deploy and that requires moderate server resources. ([Source Code](https://github.com/jech/galene)) `MIT` `Go`
 - [LiveKit](https://livekit.io/) - Modern, scalable WebRTC conferencing platform with client SDKs. ([Demo](https://livekit.io/playground), [Source Code](https://github.com/livekit/livekit-server)) `Apache-2.0` `Go`
+- [plugNmeet](https://www.plugnmeet.org/) - Scalable, High Performance, Open source web conferencing system. ([Demo](https://demo.plugnmeet.com/login.html), [Source Code](https://github.com/mynaparrot/plugNmeet-server)) `MIT` `Docker/Go`
 - [Wirow](https://github.com/wirow-io/wirow-server) - A full featured self-hosted video web-conferencing platform. `AGPL-3.0` `C`