webhint's accessibility configuration (@hint/configuration-accessibility)

This is a webhint configuration package to use for enabling
accessibility hints based on [axe-core][axe core] provided
via [hint-axe][hint axe] and it is installed automatically
with webhint:

``bash
npm install hint --save-dev
`

Note: The recommended way of running webhint is as a devDependency of
your project.

The minimum required [.hintrc][hintrc] file to use it is
the following:

`json
{
"extends": ["accessibility"]
}
`

and it will be as if you had this:

`json
{
"connector": "puppeteer",
"formatters": [
"html",
"summary"
],
"hints": {
"axe/aria": "error",
"axe/color": "error",
"axe/forms": "error",
...
},
"hintsTimeout": 120000
}
`

If you prefer to use another formatter (or any other hint/connector,
etc.) you can do something like:

`json
{
"extends": ["accessibility"],
"formatters": ["codeframe"]
}
``

[axe core]: https://github.com/dequelabs/axe-core/
[hint axe]: https://webhint.io/docs/user-guide/hints/hint-axe/
[hintrc]: https://webhint.io/docs/user-guide/configuring-webhint/summary/