Update deprecated example in README

Option 'connection-secret' is deprecated: Use connection-token-file instead.

Author: bjrne

README.md

@@ -90,7 +90,7 @@ RUN \
   From the possible entrypoint arguments, the most notable ones are
 	- `--port` - the port number to start the server on, this is 3000 by default
 	- `--without-connection-token` - used by default in the docker image
-	- `--connection-token` & `--connection-secret` for securing access to the IDE, you can read more about it in [Securing access to your IDE](#securing-access-to-your-ide).
+	- `--connection-token` & `--connection-token-file` for securing access to the IDE, you can read more about it in [Securing access to your IDE](#securing-access-to-your-ide).
 	-  `--host` - determines the host the server is listening on. It defaults to `localhost`, so for accessing remotely it's a good idea to add `--host 0.0.0.0` to your launch arguments.
 
 - Visit the URL printed in your terminal.
@@ -99,7 +99,7 @@ _Note_: You can use [pre-releases](https://github.com/gitpod-io/openvscode-serve
 
 ### Securing access to your IDE
 
-Since OpenVSCode Server v1.64, you can access the Web UI without authentication (anyone can access the IDE using just the hostname and port), if you need some kind of basic authentication then you can start the server with `--connection-token YOUR_TOKEN`, the provided `YOUR_TOKEN` will be used and the authenticated URL will be displayed in your terminal once you start the server. You can also create a plaintext file with the desired token as its contents and provide it to the server with `--connection-secret YOUR_SECRET_FILE`.
+Since OpenVSCode Server v1.64, you can access the Web UI without authentication (anyone can access the IDE using just the hostname and port), if you need some kind of basic authentication then you can start the server with `--connection-token YOUR_TOKEN`, the provided `YOUR_TOKEN` will be used and the authenticated URL will be displayed in your terminal once you start the server. You can also create a plaintext file with the desired token as its contents and provide it to the server with `--connection-token-file YOUR_SECRET_TOKEN_FILE`.
 
 If you want to use a connection token and are working with OpenVSCode Server via [the Docker image](https://hub.docker.com/r/gitpod/openvscode-server), you will have to edit the `ENTRYPOINT` in [the Dockerfile](https://github.com/gitpod-io/openvscode-releases/blob/main/Dockerfile) or modify it with the [`entrypoint` option](https://docs.docker.com/compose/compose-file/compose-file-v3/#entrypoint) when working with `docker-compose`.