Link to blog post in readme

README.md

@@ -3,4 +3,13 @@
 [![License](https://img.shields.io/github/license/mautrix/twilio.svg)](LICENSE)
 [![GitLab CI](https://mau.dev/mautrix/twilio/badges/main/pipeline.svg)](https://mau.dev/mautrix/twilio/container_registry)
 
-A bridgev2 demo project for bridging Matrix and Twilio.
+A bridgev2 demo project for bridging Matrix and Twilio. See the [blog post] for
+a walkthrough of writing this bridge.
+
+This is meant as a relatively minimal tutorial rather than a fully-featured
+Twilio bridge, so there's no dedicated docs or support room. The usual
+instructions for setting up Go bridges should work. For help with using
+mautrix-go to write bridges, there's [#go:maunium.net].
+
+[blog post]: https://mau.fi/blog/megabridge-twilio/
+[#go:maunium.net]: https://matrix.to/#/#go:maunium.net