The help menu should be expanded with less succint explanations and more examples.  In addition to that I think that replacing it with a local pdf  file and/or a link to an online html file should be considered:

1: pdf/html files can be easily accessed whereever a gui is present (that is, wherever one would use eskil)

2: it would be probably easier to maintain and expand

3: it would be available both online and locally while the author does not have to write/maintains the same things in two different context (as builtin menus and as an html page online)