Add guidance on how to lint JavaScript inside HTML files

[dandv]

From a quick look at this project, it appears it only lints HTML, and doesn't pass through the JavaScript in <script> tags to ESLint.

Whether that is correct or not, I think it would help to add a note to the README and to the homepage about how to lint JavaScript in HTML files.

[yeonjuan]

@dandv Thanks for reporting this issue.

From a quick look at this project, it appears it only lints HTML, and doesn't pass through the JavaScript in <script> tags to ESLint.

Yes, this plugin cannot lint javascript in a script. It would be nice to mention in the documentation to use eslint-plugin-html for linting js inside scripts.