Update README.md

## Convert your old INI files:

To convert your old INI files, please download the SmartIR INI Converter app (only for windows) from the [Tools](Tools/) folder.

### 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

```

## Available codes for climate devices:

Below are the code files created by the people in the community. Before you start creating your own code file, try if one of them works with your device. **Please open an issue if your device is working and not included in the supported models.**