Style guide:
https://vuejs.org/v2/style-guide/#Component-name-casing-in-templates-strongly-recommended

Description:
This rule would ensure proper component names in templates. As we only check .vue files in terms of templates we can provide both options: kebab-case and PascalCase

Good examples:

• kebab-case

<the-component />

• PascalCase

<TheComponent />

Bad examples:

<theComponent />
<Thecomponent />
<The-component />

and obviously with kebab-case option it would warn about PascalCase and vice-versa.

Default option would be PascalCase.