Update links to new Synapse documentation (#164)

README.md

@@ -7,7 +7,7 @@ This project is built using [react-admin](https://marmelab.com/react-admin/).
 It needs at least Synapse v1.34.0 for all functions to work as expected!
 
 You get your server version with the request `/_synapse/admin/v1/server_version`.
-See also [Synapse version API](https://github.com/matrix-org/synapse/blob/develop/docs/admin_api/version_api.rst).
+See also [Synapse version API](https://matrix-org.github.io/synapse/develop/admin_api/version_api.html).
 
 After entering the URL on the login page of synapse-admin the server version appears below the input field.
 
@@ -16,7 +16,7 @@ You need access to the following endpoints:
 - `/_matrix`
 - `/_synapse/admin`
 
-See also [Synapse administration endpoints](https://github.com/matrix-org/synapse/blob/develop/docs/reverse_proxy.md#synapse-administration-endpoints)
+See also [Synapse administration endpoints](https://matrix-org.github.io/synapse/develop/reverse_proxy.html#synapse-administration-endpoints)
 
 ## Step-By-Step install: