Add documentation for streamlabswater component (#8733)

* Add documentation for streamlabswater component

* Bump ha_release for component to 0.90

* Quote version to maintain trailing zero

* Remove unnecessary redirects from streamlabswater

* Update streamlabswater.markdown

source/_components/streamlabswater.markdown

@@ -0,0 +1,54 @@
+---
+layout: page
+title: "Streamlabs Water"
+description: "Instructions on how to integrate Streamlabs Water devices with Home Assistant."
+date: 2019-02-25 12:00
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: streamlabswater.png
+ha_category:
+  - Binary Sensor
+  - Sensor
+ha_release: "0.95"
+ha_iot_class: "Cloud Polling"
+---
+
+The `Streamlabs Water` component platform is used to interact with [Streamlabs water monitoring devices](https://www.streamlabswater.com/) in order to retrieve usage information and manage the away mode of the device. The [Streamlabs Water API](https://developer.streamlabswater.com) is used to retrieve daily, monthly, and yearly water usage along with the current away mode.
+
+There is currently support for the following device types within Home Assistant:
+
+- Binary Sensor
+- Sensor
+
+In preparation for using this component you will need to request an API key following the instructions in the [Streamlabs API Getting Started Section](https://developer.streamlabswater.com/docs/getting-started.html). Be sure to request an API key and not an OAuth token.
+
+## {% linkable_title Configuration %}
+
+Add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+streamlabswater:
+  api_key: YOUR_API_KEY
+```
+
+{% configuration %}
+api_key:
+  description: Your api_key for the Streamlabs API.
+  required: true
+  type: string
+location_id:
+  description: A specific monitor to use if you have multiple. By default the first found will be used.
+  required: false
+  type: string
+{% endconfiguration %}
+
+## {% linkable_title Service `set_away_mode` %}
+
+You can use the service `streamlabswater.set_away_mode` to set the mode to `home` or `away`. The away mode will only be changed for the configured location.
+
+| Service data attribute | Optional | Description |
+| ---------------------- | -------- | ----------- |
+| `away_mode` | no | String, must be `away` or `home`.