[wesnoth-commits] [wesnoth/wesnoth] e01c6f: Update changelog.md

[Steve Cotton]

  Branch: refs/heads/master
  Home:   https://github.com/wesnoth/wesnoth
  Commit: e01c6fa800a94a11b0250ca17f9d45f47c42bac1
      https://github.com/wesnoth/wesnoth/commit/e01c6fa800a94a11b0250ca17f9d45f47c42bac1
  Author: Steve Cotton <steve at octalot.co.uk>
  Date:   2020-09-19 (Sat, 19 Sep 2020)

  Changed paths:
    M changelog.md

  Log Message:
  -----------
  Update changelog.md

I think it now covers all of changes since 1.15.4, except for the following:

* Lua GUI2 API
* 5be808f1ba add [advancement][filter]

[ci skip]