[mapserver-commits] [MapServer/MapServer] f2f1d9: change migration guide to markdown

[Jeff McKenna]

  Branch: refs/heads/backport-6820-to-branch-8-0
  Home:   https://github.com/MapServer/MapServer
  Commit: f2f1d95de07f90ceb7f44c3aa85d14949b32eb78
      https://github.com/MapServer/MapServer/commit/f2f1d95de07f90ceb7f44c3aa85d14949b32eb78
  Author: Jeff McKenna <jmckenna at gatewaygeomatics.com>
  Date:   2023-02-05 (Sun, 05 Feb 2023)

  Changed paths:
    A MIGRATION_GUIDE.md
    R MIGRATION_GUIDE.txt

  Log Message:
  -----------
  change migration guide to markdown