[xmlunit/xmlunit.net] 23f853: prepare 2.9.0 release

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

  Branch: refs/heads/main
  Home:   https://github.com/xmlunit/xmlunit.net
  Commit: 23f85328daa120a79018f1871ac4b4bbea7c1384
      https://github.com/xmlunit/xmlunit.net/commit/23f85328daa120a79018f1871ac4b4bbea7c1384
  Author: Stefan Bodewig <ste...@fr...>
  Date:   2020-10-30 (Fri, 30 Oct 2020)

  Changed paths:
    M RELEASE_NOTES.md
    M src/doc/monodoc/core/index.xml
    M src/shared/CommonAssemblyInfo.cs

  Log Message:
  -----------
  prepare 2.9.0 release