Add support for the Crystal programming language.

[MarkusPettersson98]

Add support for Crystal repositories. This resolves issue #144.

Love the new language declaration macro, it's super handy! 😄

Hope your Hacktoberfest won't be as spammy as some other repositories. Keep up the great work!

[o2sh]

Hi @MarkusPettersson98, thanks a lot for your PR.

I'm very happy to see that you followed the guidelines concerning the max size of the ascii logo.

However, as most people use terminals with black background. I would advise to maybe interchange the colors: black <-> white.
Even though it means drifting away from the original design of the logo.

Love the new language declaration macro, it's super handy!

Definetely, we have to thank @spenserblack for that 🙏

[MarkusPettersson98]

Thank you for the quick response!

I agree that the original color scheme might be hard to read in most terminals, so I swapped black and white in this case.

Dark/light-mode feature incoming? 😉

Thanks! @spenserblack