Docs unclear on usage of default spell mappings

[cincodenada]

Hello! Thanks for making this, it's been so useful - spell checking that doesn't account for camelCase is useless to me, so it's so nice to have spell checking again :)

I have a small question: from reading the docs, particularly Section 3.2 of the README where it says (emphasis mine):

Spelunker.vim use Vim spell commands as default. You can also add word under cursor to spellfile with the following commands:

" Add selected word to spellfile
" zg =>
Zg

[...and so on...]

Reading that, I expect that I can just use the regular Vim spell commands if I :set nospell and then use Spelunker.

That isn't the case, at least in my install - the usual spell commands (starting with a lowercase z) do nothing in normal mode. Looking at the plugin source, the only place I see any of the lower-case commands (besides documentation) is a mapping for add-spelunker-good/bad that I think is executing zg/zw. I don't know if I'm missing some other hooks that should be firing or something.

So depending on what is expected to happen, I'm seeing either a documentation bug (docs imply that Spelunker should work out of the box with the default vimspell bindings when it shouldn't), or a functionality bug (it should work with the default bindings, but doesn't).

What is the intended behavior here? Thanks!