Documentation not up to date with 0.9.2 release

[heliocastro]

After 0.9.2 release, mandatory arguments are not reflected on documentation on commandline

Missing options on --help:

python-version
operating-system
prefer-source

[TG1999]

@heliocastro thanks for raising this, it is been worked in this https://github.com/nexB/python-inspector/pull/99

[TG1999]

@heliocastro please use this tag https://github.com/nexB/python-inspector/tree/v0.9.3 and let us know if this helps.