Renamed riot.im to Element, updated links and added https

README.md

@@ -306,7 +306,7 @@ _CalDAV or CardDAV web-based clients._
 - [Spreed](https://www.spreed.me/) - WebRTC audio/video calls, conferencing server, and web client. ([Source Code](https://github.com/strukturag/spreed-webrtc)) `AGPL-3.0` `Go`
 - [Synapse](http://matrix.org/docs/projects/server/synapse.html) - Server for [Matrix](https://matrix.org/), an open standard for decentralized persistent communication. ([Source Code](https://github.com/matrix-org/synapse)) `Apache-2.0` `Python`
   - [Matrix Console Web](http://matrix.org/docs/projects/client/matrix-console.html) - Web client meant to be a showcase of Matrix capabilities, and reference implementation of the Matrix standard. ([Source Code](https://github.com/matrix-org/matrix-angular-sdk)) `Apache-2.0` `Javascript`
-  - [Riot.im](http://riot.im) - Fully-featured Matrix client for Web, iOS & Android. ([Source Code](https://github.com/vector-im/riot-web)) `Apache-2.0` `Javascript`
+  - [Element](https://element.io) - Fully-featured Matrix client for Web, iOS & Android. ([Source Code](https://github.com/vector-im/element-web)) `Apache-2.0` `Javascript`
 - [Syndie](https://syndie.de) - Syndie is a libre system for operating distributed forums. `CC0-1.0` `Java`
 - [TextBelt](https://github.com/typpo/textbelt) `⚠` - Outgoing SMS API that uses carrier-specific gateways to deliver your text messages for free, and without ads. `MIT` `Javascript`
 - [Tox](https://tox.chat/) - Distributed, secure messenger with audio and video chat capabilities. ([Source Code](https://github.com/irungentoo/toxcore)) `GPL-3.0` `C`