A new `help matchers` command will provide helpful examples on a few
of the standard matchers: be, cmp, include, etc.
I also cleaned up the formatting of the resources list and provided
better feedback if a user requests help for an unknown resource.
Resolves#1684
Signed-off-by: Adam Leff <adam@leff.co>
When in inspec shell, you need to type the `help` command to find out info
about your target system. This info would be super helpful right out of the
gate so users have confidence that they're targeting the correct system.
The target info is still available via the `help` command as it always has
been, as well.
Signed-off-by: Adam Leff <adam@leff.co>
