Update README.md

<p align="center">

  <a href="MEDIA_PLAYER.md"><img src="http://www.tooltip.gr/github_assets/smartir_mediaplayer.png" width="400" alt="SmartIR Media Player"></a>

</p>

## Links

* [SmartIR Chat on Telegram](https://t.me/smartHomeHub)

## Add to custom updater _(Recommended)_

1. Make sure you've the [custom_updater](https://github.com/custom-components/custom_updater) component installed and working.

2. Add a new reference under `component_urls` in your `custom_updater` configuration in `configuration.yaml`.

```yaml

custom_updater:

  component_urls:

    - https://raw.githubusercontent.com/smartHomeHub/SmartIR/master/custom_components.json

```