Add person component (#8458)

* Add person component

* Add logo

source/_components/person.markdown

@@ -0,0 +1,66 @@
+---
+layout: page
+title: "Person"
+description: "Instructions on how to setup people tracking within Home Assistant."
+date: 2019-02-05 22:36
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: home-assistant.png
+ha_category: Presence Detection
+ha_qa_scale: internal
+ha_release: 0.88
+---
+
+The person component allows to connect device tracker entities to one or more person entities. The last state update of a connected device tracker will set the state of the person. Eg if you connect your router and your owntracks device as trackers to your person, the last state update from either the router or your owntracks device will set the state of your person.
+
+## {% linkable_title Configuring the `person` component %}
+
+To get started add the following lines to your `configuration.yaml`:
+
+```yaml
+# Example configuration.yaml entry
+person:
+  - name: Ada
+    id: ada6789
+    device_trackers:
+      - device_tracker.ada
+```
+
+{% configuration %}
+  id:
+    description: A unique id of the person.
+    required: true
+    type: string
+  name:
+    description: The name of the person.
+    required: true
+    type: string
+  user_id:
+    description: The user id of the Home Assistant user account for the person.
+    required: false
+    type: string
+  device_trackers:
+    description: A list of device tracker entity ids to track. These will represent the state of the person.
+    required: false
+    type: list, string
+{% endconfiguration %}
+
+
+An extended example would look like the following sample:
+
+```yaml
+# Example configuration.yaml entry
+person:
+  - name: Ada
+    id: ada6789
+    device_trackers:
+      - device_tracker.ada
+  - name: Stacey
+    id: stacey12345
+    user_id: 12345678912345678912345678912345
+    device_trackers:
+      - device_tracker.stacey
+      - device_tracker.beacon
+```