Fix host-keys examples

Author: stevapple

README.md

@@ -28,12 +28,10 @@ General settings configure the `sshmux` service. They are top-level settings in
 
 SSH settings configure the integrated SSH server in `sshmux`. They are grouped under `ssh` in the TOML file.
 
-| Key         | Type       | Description                                                        | Required | Example                |
-| ----------- | ---------- | ------------------------------------------------------------------ | -------- | ---------------------- |
-| `banner`    | `string`   | SSH banner to send to downstream.                                  | No       | `"Welcome to Vlab\n"`  |
-| `host-keys` | `[]SSHKey` | Paths to SSH host key files with which `sshmux` identifies itself. | Yes      | See [below](#ssh-keys) |
-
-SSH keys can be designated as file path, base64-encoded string or raw string, see the [examples](fixtures/config.toml).
+| Key         | Type       | Description                                                        | Required | Example                                            |
+| ----------- | ---------- | ------------------------------------------------------------------ | -------- | -------------------------------------------------- |
+| `banner`    | `string`   | SSH banner to send to downstream.                                  | No       | `"Welcome to Vlab\n"`                              |
+| `host-keys` | `[]SSHKey` | Paths to SSH host key files with which `sshmux` identifies itself. | Yes      | See [`fixtures/config.toml`](fixtures/config.toml) |
 
 ### Auth Settings