Visual Spell Check
View the spell checking results in the document being checked.
Command: check - Quick Visual Check
Do a quick visual check of a file. This is a great way to see which text is included in the check.
cspell check <filename>
It will produce something like this:

Tip for use with less
To get color in less, use --color and less -r
cspell check <filename> --color | less -r