[rear-devel] [rear/rear] 1c1c9d: Update rear-release-notes.txt

[Johannes Meixner]

  Branch: refs/heads/master
  Home:   https://github.com/rear/rear
  Commit: 1c1c9d82cc6d822f3e3db23ebac4e45caaf0e214
      https://github.com/rear/rear/commit/1c1c9d82cc6d822f3e3db23ebac4e45caaf0e214
  Author: Johannes Meixner <jsmeix at suse.com>
  Date:   2021-01-15 (Fri, 15 Jan 2021)

  Changed paths:
    M doc/rear-release-notes.txt

  Log Message:
  -----------
  Update rear-release-notes.txt

Typo fix: "Additionaly" -> "Additionally"