[Feature Request] Support autotitle

[JReinhold]

Storybook has a feature called autotitle, that sets the title of the component (meta) based on the file path, if no title is explicitly set. It would be nice if this addon supported that feature.

Implementation

The indexer gets passed a makeTitle function in the indexer options (second parameter) to the indexer function. That function can be used to generate this title automatically, also taking into account any user title specified.

Additional context

Implementing this with makeTitle would probably also solve the bug at #130 at the same time.

[benmccann]

#101 sounds potentially related as well

[j3rem1e]

This API didn't exist when I have implemented the indexer. I can have a look at it.

[j3rem1e]

I have fixed autotitle here: #134