[logback-dev] [qos-ch/logback] f25c5d: replace README.txt with README.md

[Ceki Gulcu]

  Branch: refs/heads/master
  Home:   https://github.com/qos-ch/logback
  Commit: f25c5d4285d3a6c98ca6aefb7a7edf553198ccc2
      https://github.com/qos-ch/logback/commit/f25c5d4285d3a6c98ca6aefb7a7edf553198ccc2
  Author: Ceki Gulcu <ceki at qos.ch>
  Date:   2017-01-25 (Wed, 25 Jan 2017)

  Changed paths:
    M README.md
    R README.txt

  Log Message:
  -----------
  replace README.txt with README.md