add zhong_hong components (#5402)

* add zhong_hong components

* config variable name change

* Update version

source/_components/climate.zhong_hong.markdown

@@ -0,0 +1,45 @@
+---
+layout: page
+title: "ZhongHong Thermostats Controller"
+description: "Instructions on how to integrate ZhongHong Support thermostats within Home Assistant."
+date: 2018-06-20 08:30
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: zhong_hong.png
+ha_category: Climate
+ha_release: "0.72"
+ha_iot_class: "Local Push"
+---
+
+
+The `zhong_hong` climate platform lets you control [Zhonghong HVAC Gateway Controller](http://zhonghongtech.cn/v1/product.shtml/) thermostats through Home Assistant.
+
+To set it up, add the following information to your configuration.yaml file:
+
+```yaml
+climate:
+  - platform: zhong_hong
+    host: GATEWAY_IP
+```
+
+{% configuration %}
+host:
+  description: The IP address of your controller.
+  required: true
+  type: string
+port:
+  description: The port of your controller.
+  required: false
+  default: 9999
+  type: int
+gateway_address:
+  description: The gateway address for the gateway (Settings in the controller itself).
+  required: false
+  default: 1
+  type: int
+
+{% endconfiguration %}
+
+When Gateway is found, All HVAC devices will be configured automatically.