Release notes from 747-400

tag:github.com,2008:https://github.com/WildOne69/747-400/releases Release notes from 747-400 2021-12-11T17:08:01Z tag:github.com,2008:Repository/442675904/2.1 2021-12-11T17:08:01Z 2.1 <p>update readme</p> mSparks43 tag:github.com,2008:Repository/442675904/2.0 2021-09-25T08:08:36Z 2.0 <p>update readme</p> WildOne69 tag:github.com,2008:Repository/442675904/1.0 2020-11-13T12:39:49Z 1.0 <p>update documentation, use EFM</p> mSparks43