Minor attempt to clear up the behaviour in the documentation

[dolezvo1]

I'm not sure what is the proper terminology for public vs public_03_add_column schemas. Major/main vs minor/specific? I think there definitely should be a consistent terminology, though.

[andrew-farries]

Thanks for adding the extra explanations to the docs 🎉

I've made some suggested changes to better explain the difference between the versioned schema containing the views and the base schema containing the tables.

[dolezvo1]

@andrew-farries Thank you for your notes! I actually wasn't even completely aware of this. I will apply your changes and try again.

[dolezvo1]

Thank you!