RUBY port of lz-string

[Oleksandr Tyshchenko]

Good news for Ruby devs - here is the lz-string port for Ruby https://github.com/Altivi/lz_string.

[Oleksandr Tyshchenko]

@pieroxy Could you add it to the README.md please?

[Oleksandr Tyshchenko]

@pieroxy to this section https://github.com/pieroxy/lz-string#other-languages

Thanks in advance!

[Ryc O'Chet]

If you want to create a PR with that change (can easily do the one-line in github directly) - then I'll +1 and merge! :-)

edit: Saw you had done that just after my comment, so merged! :-D