Merge pull request #100 from trieloff/patch-1

docs(readme): clarify synapse availability

README.md

@@ -13,7 +13,7 @@ Chatterbox lets you securely embed [Hydrogen](https://github.com/vector-im/hydro
 
 To use Chatterbox you will need:
 
-- A homeserver which supports [Token-authenticated registration](https://spec.matrix.org/v1.3/client-server-api/#token-authenticated-registration). Currently the only known implementation is [Synapse](https://github.com/matrix-org/synapse).
+- A homeserver which supports [Token-authenticated registration](https://spec.matrix.org/v1.3/client-server-api/#token-authenticated-registration). Currently the only known implementation is [Synapse](https://github.com/matrix-org/synapse) (which is available as a service from [element.io](https://element.io)).
 - An account on that homeserver which can create registration tokens. Synapse requires the account to be an admin.
     
 ### Develop Instructions
@@ -90,4 +90,4 @@ $ curl --data '{ "uses_allowed": 50 }' -H 'Authorization: Bearer YOUR_ADMIN_TOKE
 ```
 
 Note that you can use `uses_allowed` to set how many chatterbox users can register via this token before no more will be permitted.
-You can then use the value of `token` in the response inside your `config.json`.
+You can then use the value of `token` in the response inside your `config.json`.
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