Resolve #226: copied text from index.rst to README

README.rst

@@ -1,7 +1,7 @@
 .. image:: https://gitlab.com/sublime-music/sublime-music/-/raw/master/logo/logo.png
    :alt: Sublime Music Logo
 
-Sublime Music is a GTK3
+Sublime Music is a native, GTK3
 `Subsonic`_/`Airsonic`_/`Revel`_/`Gonic`_/`Navidrome`_/\*sonic client for the
 Linux Desktop.
 
@@ -11,6 +11,97 @@ Linux Desktop.
 .. _Gonic: https://github.com/sentriz/gonic
 .. _Navidrome: https://www.navidrome.org/
 
+.. figure:: ./_static/screenshots/play-queue.png
+   :align: center
+   :target: ./_static/screenshots/play-queue.png
+
+   The Albums tab of Sublime Music with the Play Queue opened. :doc:`More
+   Screenshots <./screenshots>`
+
+Features
+--------
+
+* Switch between multiple Subsonic-API-compliant [1]_ servers.
+* Play music through Chromecast devices on the same LAN.
+* Offline Mode where Sublime Music will not make any network requests.
+* DBus MPRIS interface integration for controlling Sublime Music via clients
+  such as ``playerctl``, ``i3status-rust``, KDE Connect, and many commonly used
+  desktop environments.
+* Browse songs by the sever-reported filesystem structure, or view them
+  organized by ID3 tags in the Albums, Artists, and Playlists views.
+* Intuitive play queue.
+* Create/delete/edit playlists.
+* Download songs for offline listening.
+
+.. [1] Requires a server which implements the Subsonic API version 1.8.0+.
+
+Installation
+------------
+
+**Via the AUR**:
+
+Install the |AUR Package|_. Example using ``yay``::
+
+    yay -S sublime-music
+
+If you want support for storing passwords in the system keychain, also install
+``python-keyring``.
+
+If you want support for playing on Chromecast devices, install
+``python-pychromecast``. If you want to serve cached files from your computer
+over the LAN to Chromecast devices also install ``python-bottle``.
+
+.. |AUR Package| replace:: ``sublime-music`` package
+.. _AUR Package: https://aur.archlinux.org/packages/sublime-music/
+
+**Via the Debian package**
+
+Sublime Music is not currently in the Debian 'Stable' distribution, but has been
+packaged for Debian 'Unstable' and 'Testing'.
+
+If you have these sources in your ``/etc/apt/sources.list``, you can install
+the package with::
+
+    sudo apt install sublime-music
+
+**Via Flatpak**:
+
+In the future, you will be able to install via Flathub. For now, if you want to
+try the Flatpak, you will have to install it manually by visiting the Releases_
+page and downloading the ``.flatpak`` file from there.
+
+Then, you can install Sublime Music with::
+
+    sudo flatpak install sublime-music.flatpak
+
+and run it by executing::
+
+    flatpak run com.sumnerevans.SublimeMusic
+
+.. _Releases: https://gitlab.com/sublime-music/sublime-music/-/releases
+
+**Via PyPi**::
+
+    pip install sublime-music
+
+There are a few optional dependencies that you can install. Here's an example of
+how to do that::
+
+    pip install sublime-music[keyring,chromecast,server]
+
+* ``keyring``: if you want to store your passwords in the system keyring instead
+  of in plain-text
+* ``chromecast``: if you want support for playing on Chromecast devices on the
+  LAN.
+* ``server``: if you want to be able to serve cached files from your computer
+  over the LAN to Chromecast devices
+
+.. note::
+
+   Sublime Music requires Python 3.8. Please make sure that you have that
+   installed. You may also need to use ``pip3`` instead of ``pip`` if you are on
+   an OS that hasn't deprecated Python 2 yet.
+
 -------------------------------------------------------------------------------
 
 |userdoc|_