[xmlunit/xmlunit.net] 140fa3: clarify release notes

[Stefan B. <no...@gi...>]

  Branch: refs/heads/netstandard-2.0
  Home:   https://github.com/xmlunit/xmlunit.net
  Commit: 140fa32436bd179337902582115bba2297d4ae54
      https://github.com/xmlunit/xmlunit.net/commit/140fa32436bd179337902582115bba2297d4ae54
  Author: Stefan Bodewig <ste...@fr...>
  Date:   2019-04-06 (Sat, 06 Apr 2019)

  Changed paths:
    M RELEASE_NOTES.md

  Log Message:
  -----------
  clarify release notes