Merge branch 'feature/autocomplete' into 'master'

..._tests__/__snapshots__/valid-autocomplete.md.spec.ts.snap

docs/rules/__tests__/valid-autocomplete.md.spec.ts

docs/rules/input-attributes.md

docs/rules/valid-autocomplete.md

src/config/presets/a11y.ts

src/config/presets/recommended.ts

src/config/presets/standard.ts

src/elements/__snapshots__/html5.spec.ts.snap

src/rules/index.ts

src/rules/input-attributes.ts

src/rules/valid-autocomplete.spec.ts

src/rules/valid-autocomplete.ts

test-files/elements/input-valid.html