Mention Ruby client in README?

Issue #29 resolved
Ilya Vassilevsky created an issue

Hello 🙂

Since #28 was a show stopper for me, I have written a Ruby library that uploads coverage directly from SimpleCov (the de-facto coverage library for Ruby):

https://github.com/funbox/simplecov-bitbucket-server

I think that it may help all Ruby programmers if you mention it in the README. Right now it says “you can use any tool”. Hopefully other non-Java languages will also provide libraries.