Replace #versions with #logidze_versions in README

[miharekar]

Saw this today, and wanted to use it, and learned that README is all wrong 😅

It was implemented as #logidze_versions in #238.

And here are the results:

irb(main):043> cafe.logidze_versions.map{|v| v.log_version}
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
irb(main):044> cafe.logidze_versions(reverse: true).map{|v| v.log_version}
=> [12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1]
irb(main):045> cafe.logidze_versions(include_self: true).map{|v| v.log_version}
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]
irb(main):046> cafe.logidze_versions(reverse: true, include_self: true).map{|v| v.log_version}
=> [13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1]

So most of the readme of this method is currently wrong 🙈

What is the purpose of this pull request?

Fix README and CHANGELOG to be correct.

What changes did you make? (overview)

Is there anything you'd like reviewers to focus on?

Checklist

• [ ] I've added tests for this change
• [ ] I've added a Changelog entry
• [x] I've updated a documentation (Readme)

[palkan]

Oops :( Thanks for fixing this!