Changes

Simplify wording

While "sans" *is* listed on en.wiktionary.org, it seems a bit confusing
for users that are neither English native nor French speakers.

Use the actual movie script name, minor rewordings

Formatting of the script name / reference is actually a matter of
conventions: previous documentation was referring to the script's *file
name* in the first section, whereas the rest of the page is using
something closer to the *client-side representation* ("make movie").

Link to CVS is dead, plus server on macOS isn't supported officially

I'd therefore suggest to remove the entire macOS-specific section on how
to install mencoder there.

Update omero/sysadmins/omeromovie.rst

Co-authored-by: jean-marie burel <j.burel@dundee.ac.uk>

Add documentation for ome/omero-py#418

Add note to `readCoordinates()`

Add examples