docs: add withMedia reference

Author: streamich

README.md

@@ -37,7 +37,7 @@ const MyComponent = mock();
   - Sensors
      - [`<BatterySensor>`](./docs/BatterySensor.md), [`withBattery()`](./docs/BatterySensor.md#withbattery), and [`@withBattery`](./docs/BatterySensor.md#withbattery-1)
      - [`<MediaDeviceSensor>`](./docs/MediaDeviceSensor.md), [`withMediaDevices`](./docs/MediaDeviceSensor.md#withmediadevices), and [`@withMediaDevices`](./docs/MediaDeviceSensor.md#withmediadevices-1)
-     - [`<MediaSensor>`](./docs/MediaSensor.md)
+     - [`<MediaSensor>`](./docs/MediaSensor.md), [`withMedia()`](./docs/MediaSensor.md#withmedia), and [`@withMedia`](./docs/MediaSensor.md#withmedia-1)
      - [`<NetworkSensor>`](./docs/NetworkSensor.md) and [`withNetwork()`](./docs/NetworkSensor.md#withnetwork)
      - [`<LightSensor>`](./docs/LightSensor.md)
      - [`<LocationSensor>`](./docs/LocationSensor.md)

docs/MediaSensor.md

@@ -11,3 +11,28 @@ import {MediaSensor} from 'libreact/lib/MediaSensor';
   `WIDTH IS GREATED THAN 480PX: ${matches}`
 }</MediaSensor>
 ```
+
+
+## `withMedia()`
+
+Higher order component that injects a boolean prop into your component that specifies if media query matches.
+
+```js
+import {withMedia} from 'libreact/lib/MediaSensor';
+
+const MyCompWithSize = withMedia(MyComp, 'isBigScreen', '(min-width: 480px)');
+```
+
+
+## `@withBattery`
+
+Statefull component class decorator that injects a boolean prop into your component that specifies if media query matches.
+
+```js
+import {withMedia} from 'libreact/lib/MediaSensor';
+
+@withMedia('isBigScreen', '(min-width: 480px)')
+class MyComp extends Component {
+
+}
+```