Enhance docs to explain about English labels

[johnbillion]

The documentation around the English language labels and how to provide translations is not clear. Needs a wiki page or something adding to the readme.

[huubl]

When modifying a build-in post type like page all the labels fallback to English. I found your comment below from 2018. So the only way is to add all the labels to register_extended_post_type()? Or are there other ways now?

#66 (comment)

You need to provide and translate the complete labels array in full, just as you would when you register a post type with WordPress' built-in register_post_type() function. Unfortunately there's nothing that Extended CPTs can do about this. The automatic label generation only works for English labels.

[johnbillion]

Yes that's correct. You could probably call get_post_type_labels( get_post_type_object( 'post' ) ) to get that list of labels so you don't need to redeclare them all.

(Extended CPTs was never originally designed for overriding existing post types, it's just something that does work.)

[huubl]

Thank you! Unfortunately get_post_type_labels( get_post_type_object( 'post' ) ) returns the English labels.