Update additional docs and legacy references.

Signed-off-by: Jason Volk <jason@zemos.net>

docs/turn.md

@@ -1,6 +1,6 @@
 # Setting up TURN/STURN
 
-In order to make or receive calls, a TURN server is required. conduwuit suggests
+In order to make or receive calls, a TURN server is required. Tuwunel suggests
 using [Coturn](https://github.com/coturn/coturn) for this purpose, which is also
 available as a Docker image.
 
@@ -17,9 +17,9 @@ realm=<your server domain>
 A common way to generate a suitable alphanumeric secret key is by using `pwgen
 -s 64 1`.
 
-These same values need to be set in conduwuit. See the [example
+These same values need to be set in Tuwunel. See the [example
 config](configuration/examples.md) in the TURN section for configuring these and
-restart conduwuit after.
+restart Tuwunel after.
 
 `turn_secret` or a path to `turn_secret_file` must have a value of your
 coturn `static-auth-secret`, or use `turn_username` and `turn_password`
@@ -34,7 +34,7 @@ If you are using TURN over TLS, you can replace `turn:` with `turns:` in the
 TURN over TLS. This is highly recommended.
 
 If you need unauthenticated access to the TURN URIs, or some clients may be
-having trouble, you can enable `turn_guest_access` in conduwuit which disables
+having trouble, you can enable `turn_guest_access` in Tuwunel which disables
 authentication for the TURN URI endpoint `/_matrix/client/v3/voip/turnServer`
 
 ### Run