Add emojis for paid/free courses

[nikivdev]

Similar to books.

[lumie31]

Want to jump on this. So basically, all courses listed in the readme should have an emoji depicting if it's a free or paid course?

[nikivdev]

Yes that would be awesome @lumie31

I think maybe these emojis would work well:
💰 - paid
🆓 - free

[lumie31]

Oooh great. Working on this @nikitavoloboev

[lumie31]

Oooh great. Working on this @nikitavoloboev

@nikitavoloboev already made a pull request regarding this