Feature request: exclude comments from count

[prosoitos]

I love wc-mode 🙂. Thank you for the package!

It would be fantastic to have an option to exclude comments (or any other markup that would not be exported to a final output) from the count. This would be extremely convenient when writing abstracts or any piece of text (or code) with a limited number of words allowed, to monitor the actual (rather than the total) number of words.