[xmlunit/xmlunit] 36470a: document xmlunit-assertj3 module. closes #203

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

  Branch: refs/heads/main
  Home:   https://github.com/xmlunit/xmlunit
  Commit: 36470a14c116ddbd3d082ac6cbb310bc93a4960d
      https://github.com/xmlunit/xmlunit/commit/36470a14c116ddbd3d082ac6cbb310bc93a4960d
  Author: Stefan Bodewig <ste...@fr...>
  Date:   2020-11-15 (Sun, 15 Nov 2020)

  Changed paths:
    M README.md

  Log Message:
  -----------
  document xmlunit-assertj3 module. closes #203