Add documentation for spider thermostat (#5805)

* add documentation for spider thermostat

* fixed a wrong copy-paste

* fixed typos

source/_components/climate.spider.markdown

@@ -0,0 +1,28 @@
+---
+layout: page
+title: "Spider Thermostat"
+description: "Instructions on how to integrate Spider thermostats within Home Assistant."
+date: 2018-07-17 22:01
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: spider.png
+ha_category: Climate
+ha_iot_class: "Cloud Polling"
+ha_release: 0.75
+---
+
+The `spider` climate platform allows you to control your temperature settings as well as if you want to cool or heat.
+
+<p class='note'>
+Full configuration details can be found on the main [Spider component](/components/spider/) page.
+</p>
+
+<p class='note'>
+Although this component lets you change the operation mode to heating or cooling, it doesn't necessarily mean your boiler can. Spider is not aware of your current situation.
+</p>
+
+<p class='note warning'>
+This component is not affiliated with Itho Daalderop Spider and retrieves data from the endpoints of the mobile application. Use at your own risk.
+</p>

source/_components/spider.markdown

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+---
+layout: page
+title: "Spider"
+description: "Instructions on how to setup the Spider hub within Home Assistant."
+date: 2018-07-17 22:01
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: spider.png
+ha_category: Hub
+ha_iot_class: "Cloud Polling"
+ha_release: 0.75
+---
+
+The `spider` component is the main component to integrate all [Itho Daalderop Spider](https://www.ithodaalderop.nl/spider-thermostaat) related platforms. You will need your Spider account information (username, password) to discover and control devices which are related to your account.
+
+## {% linkable_title Configuration %}
+
+To add your Spider devices into your Home Assistant installation, add the following to your `configuration.yaml` file:
+
+```yaml
+spider:
+  username: YOUR_USERNAME
+  password: YOUR_PASSWORD
+```
+
+{% configuration %}
+username:
+  description: Account username of mijn.ithodaalderop.nl
+  required: true
+  type: string
+password:
+  description: Account password of mijn.ithodaalderop.nl
+  required: true
+  type: string
+{% endconfiguration %}
+
+<p class='note warning'>
+This component is not affiliated with Itho Daalderop Spider and retrieves data from the endpoints of the mobile application. Use at your own risk.
+</p>