ctranslate/README.md

`anzorq/m2m100_418M_ft_ru-kbd_44K` converted to `ctranslate2` format with int8 quantization.

```bash
ct2-transformers-converter --model anzorq/m2m100_418M_ft_ru-kbd_44K --output_dir m2m100_418M_ru-kbd --force --quantization int8
```