Mark app as deprecated in README

README.md

@@ -1,26 +1,8 @@
 # IRCCloud Desktop
 
-This is a prototype of an IRCCloud desktop app for Windows, Linux, and macOS. The app wraps the IRCCloud website in a native window.
-
-This app is currently experimental and is not officially supported, however it should provide equivalent or better functionality to other IRCCloud desktop wrapper apps.
-
-If you have any issues, please file them in the [GitHub Issue Tracker](https://github.com/irccloud/irccloud-desktop/issues).
-
-## Downloading
-
-The latest official build can be [downloaded here](https://desktop.irccloud.com). The appropriate version should be detected based on your OS.
-
-* Mac: DMG
-* Windows: Installer
-* Linux: AppImage
-
-On Linux, the app is also available on [Snapcraft](https://snapcraft.io/irccloud)
-
-You can also browse the [Releases](https://github.com/irccloud/irccloud-desktop/releases) list for other artifacts, e.g. (Mac ZIP, deb, source tarball)
+⚠️ **This app is now discontinued and will no longer be updated.** Instead, we recommend you install the IRCCloud website as an app using your browser.
 
 ## Development
-[![Build status](https://github.com/irccloud/irccloud-desktop/workflows/Build/badge.svg)](https://github.com/irccloud/irccloud-desktop/actions?query=workflow%3ABuild)
-[![IRC #feedback](https://img.shields.io/badge/IRC-%23feedback-1e72ff.svg?style=flat)](https://www.irccloud.com/invite?channel=%23feedback&hostname=irc.irccloud.com&port=6697&ssl=1)
 
 IRCCloud Desktop is built on the Electron app framework, as used by
 GitHub's Atom editor. For more information, check out the [Electron
@@ -40,7 +22,3 @@ Run `make dev` in the root of the repository to run the app quickly (without ico
 To build a full version, `make dist`.
 
 Instructions for building packages and signed binaries on CI are at [docs/OfficialBuilds.md](docs/OfficialBuilds.md)
-
-## Feedback
-
-If you have any questions, get in touch on [#feedback at irc.irccloud.com](https://www.irccloud.com/invite?channel=%23feedback&hostname=irc.irccloud.com&port=6697&ssl=1).