[logback-dev] [qos-ch/logback] 72096f: update slf4j version reference, typo fixes

[Ceki Gülcü]

  Branch: refs/heads/master
  Home:   https://github.com/qos-ch/logback
  Commit: 72096f8fe9b3c9516cb2216d92835151868a4977
      https://github.com/qos-ch/logback/commit/72096f8fe9b3c9516cb2216d92835151868a4977
  Author: Ceki Gulcu <ceki at qos.ch>
  Date:   2021-12-23 (Thu, 23 Dec 2021)

  Changed paths:
    M logback-site/src/site/pages/download.html
    M logback-site/src/site/pages/news.html
    M pom.xml

  Log Message:
  -----------
  update slf4j version reference, typo fixes

Signed-off-by: Ceki Gulcu <ceki at qos.ch>