Updated heatmiser config to match next release (#11290)

source/_integrations/heatmiser.markdown

@@ -17,25 +17,24 @@ To set it up, add the following information to your `configuration.yaml` file:
 ```yaml
 climate:
   - platform: heatmiser
-    ipaddress: YOUR_IP_ADDRESS
+    host: YOUR_IP_ADDRESS
     port: YOUR_PORT
     tstats:
-      - 1:
-        id: THERMOSTAT_ID
+      - id: THERMOSTAT_ID
         name: THERMOSTAT_NAME
 ```
 
 A single interface can handle up to 32 connected devices.
 
 {% configuration %}
-ipaddress:
+host:
   description: The IP address of your interface.
   required: true
   type: string
 port:
   description: The port that the interface is listening on.
   required: true
-  type: integer
+  type: string
 tstats:
   description: A list of thermostats activated on the gateway.
   required: true