Added Last.fm page

source/_components/sensor.lastfm.markdown

@@ -0,0 +1,38 @@
+---
+layout: page
+title: "Last.fm"
+description: "Instructions how to integrate Last.fm sensors into Home Assistant."
+date: 2016-05-18 09:00
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: lastfm.png
+ha_category: Sensor
+ha_iot_class: "Cloud Polling"
+ha_release: 0.20
+---
+
+
+The Last.fm platform will allow you to see whenever a user starts scrobbling, their play count, last song played and top song played.
+
+To get an API key you need to create an ["API account"](http://www.last.fm/api/account/create).
+
+To use Last.fm with your installation, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+sensor:
+  platform: lastfm
+  api_key: YOUR_API_KEY
+  users:
+    - user1
+    - user2
+```
+
+Configuration variables:
+
+- **api_key** (*Required*): Your API key.
+- **users** array (*Required*): Array of users.
+  - **username** (*Required*): Username of the user.
+