Clarify difference to license-checker

[hmeine]

I feel a little stupid to ask this question, but I have been reading the README of both npm-license-crawler and license-checker for a few minutes, and did not come to an exact conclusion which one is closer to what I need. From a project management perspective, I would like to be able to see the licenses of all components included in a production build. (EDIT: A colleague showed me how to do this with license-checker and some scripts he wrote.)

I would like to suggest to extend the first sentences of your README to clarify what exactly is the difference between the two projects.

I suspect the difference is in what "goes in" to the license analysis. I must admit that I am not an NPM / frontend developer expert, which is probably causing my issue.