Print extracted words in the highlighted colour

- `colorama` used in #11 doesn't support general colours besides default ones, because it is a cross-platform tool.
- Consider [Textualize/rich](https://github.com/Textualize/rich) for rich text and beautiful formatting in the terminal.
- Consider [Textualize/textual](https://github.com/Textualize/textual) for a text user interface.