There are many more fixes to be made but I wanted these in. Even the
files I have checked will have to be checked again in more detail but I
needed these committed so I could fix something in another file that
will need a new branch. More updates to README.md files will then be put
into yet another branch if the pull requests have not yet been merged
before I get to these updates (which really ought to be a lot of
fun! :-) )