Drop support for 8, make clear that we support 10+

README.md

@@ -23,7 +23,10 @@ Please also be aware that this is an unoffical project worked on in my (Half-Sho
 
 ## Setting up
 
-These instructions were tested against Node.js v8.11.1 and the Synapse homeserver.
+The bridge has been tested against the [Synapse](https://github.com/matrix-org/synapse) homeserver, although any homeserver
+that implements the [AS API](https://matrix.org/docs/spec/application_service/r0.1.0.html) should work with this bridge.
+
+The bridge supports any version of Node.js >= v10.X, including all [current releases](https://nodejs.org/en/about/releases/).
 
 ### Setup the bridge