Add Dweet export docs

source/_components/dweet.markdown

@@ -0,0 +1,44 @@
+---
+layout: page
+title: "Dweet.io"
+description: "Record events in InfluxDB."
+date: 2016-05-07 07:08
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: dweet.png
+ha_category: "History"
+featured: true
+ha_release: 0.19
+---
+
+The `dweet` component makes it possible to transfer details collected with Home Assistant to [Dweet.io](http://dweet.io/) and visualize them with [freeboard.io](https://freeboard.io). Keep in mind that your information will be public!
+
+<p class='img'>
+  <img src='{{site_root}}/images/screenshots/dweet-freeboard.png' />
+</p>
+
+
+<p class='note warning'>
+  The publishing interval is limited to 1 second. This means that it's possible to missing fast changes.
+</p>
+
+To use the `deweet` component in your installation, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+dweet:
+  name: HAExport
+  whitelist:
+    - input_slider.brightness
+    - input_boolean.notify_home
+    - sensor.weather_temperature
+    - sensor.cpu
+```
+
+Configuration variables:
+
+- **name** (*Required*): Choose must choose an unique name.
+- **whitelist** (*Required*): List of entity IDs you want to publish.
+