Explain how to watch files inside `node_modules`

Editor assessment

The subject `docs: explain how to watch files inside `node_modules`` states the documentation's topic and its non-obvious target — dependency files — which is a complete, instructive description. The docs type is right, and the path substitutes for a scope. No body or footer appears, acceptable because the subject fully names the guidance added. No junk, no trailing period, sensible length. A reader knows exactly what documentation appeared and what question it answers.