chore(docs): Expand on the currently-supported services

README

@@ -1,7 +1,15 @@
 # -*- mode: org; org-html-head-include-default-style: nil; org-html-postamble: nil; -*-
 #+OPTIONS: toc:nil
 * Tau
-A front-end alternative to various streaming sites. It leverages the excellent [[https://github.com/TeamNewPipe/NewPipeExtractor][NewPipe Extractor]] library that powers the popular [[https://github.com/TeamNewPipe/NewPipe][NewPipe]] Android app. Tau exposes the extracted data over a REST API that is consumed by a local re-frame SPA.
+A front-end alternative to various streaming sites. It currently supports the following platforms:
+
+- YouTube
+- SoundCloud
+- media.ccc.de
+- PeerTube
+- Bandcamp
+
+To retrieve the data, it leverages the excellent [[https://github.com/TeamNewPipe/NewPipeExtractor][NewPipe Extractor]] library that powers the popular [[https://github.com/TeamNewPipe/NewPipe][NewPipe]] Android app. Tau exposes the extracted data over a REST API that is consumed by a local re-frame SPA.
 
 The easiest way to set up Tau's dependencies is via the [[https://guix.gnu.org/][GNU Guix]] package manager. Simply invoke what follows: