Update Telnet switch component configuration variable (#6836)

* Update Telnet switch component configuration variable

* Minor changes

source/_components/switch.telnet.markdown

@@ -12,33 +12,64 @@ ha_release: 0.54
 ha_iot_class: "Local Polling"
 ---
 
-
 The `telnet` switch platform allows you to control devices with telnet commands.
 
 To enable this switch, add the following lines to your `configuration.yaml` file:
 
+{% raw %}
 ```yaml
 # Example configuration.yaml entry
 switch:
   platform: telnet
   switches:
     projector:
-      resource: "host_or_ip"
+      resource: THE_IP_ADDRESS
       port: 4002
       command_on: "PWR ON"
       command_off: "PWR OFF"
       command_state: "PWR?"
-      value_template: '{% raw %}{{ value == "PWR=01" }}{% endraw %}'
+      value_template: '{{ value == "PWR=01" }}'
 ```
+{% endraw %}
 
-Configuration variables:
-
-- **switches** (*Required*): The array that contains all switches.
-  - **identifier** (*Required*): Name of the switch as slug. Multiple entries are possible.
-    - **resource** (*Required*): Host or IP of the device.
-    - **port** (*Optional*): Port to connect to. Default is 23 if not defined.
-    - **command_on** (*Required*): Command to turn device on.
-    - **command_off** (*Required*): Command to turn device off.
-    - **command_state** (*Optional*): Command to determine the state of the switch. If not defined the switch will assume successful state changes.
-    - **value_template** (*Optional*): The template evaluating to `true` will indicate that the switch is on.
-    - **name** (*Optional*): The name used to display the switch in the frontend.
+{% configuration %}
+switches:
+  description: The array that contains all switches.
+  required: true
+  type: list
+  keys:
+    identifier:
+      description: Name of the switch as slug. Multiple entries are possible.
+      required: true
+      type: list
+      keys:
+        resource:
+          description: Host name or IP address of the device.
+          required: true
+          type: string
+        port:
+          description: Port to connect to.
+          required: false
+          default: 23
+          type: integer
+        command_on:
+          description: Command to turn device on.
+          required: true
+          type: string
+        command_off:
+          description: Command to turn device off.
+          required: true
+          type: string
+        command_state:
+          description: Command to determine the state of the switch. If not defined the switch will assume successful state changes.
+          required: false
+          type: string
+        value_template:
+          description: The template evaluating to `true` will indicate that the switch is on.
+          required: false
+          type: template
+        name:
+          description: The name used to display the switch in the frontend.
+          required: false
+          type: string
+{% endconfiguration %}