Feature: format script tags

[johannes-z]

I implemented the feature to also format script tags of specified file types (e.g. html), but I've read in #3 that you didn't like this feature. Can I create the PR regardless, or not?

[joseluisq]

I would be great feature.
For example atom-linter-js-standard has "Lint html-embedded script blocks" option.

[chimmelb]

@johannes-z You should create that PR! I'm developing with VueJS that has .vue files. Thankfully the script tags are linted, and I can select the text in the tag and Ctrl+Alt+F to format. But it would be great if those files(' <script> tags) would just be formatted on save like my other JS files.