Add the NodeCode struct to expose number of backticks from inline code spans

[vojtechkral]

I would like to use the information how many backtics are used for a code span,
ie. being able to tell whether `foo` or ``foo`` was used.
This adds the code to expose that information in the API.

I'm not too happy about it being a breaking change, but didn't see how it could be done otherwise.
Let me know if this is acceptable at all...

Edit: Test included.

Thanks for a nice md parser 🙂

[kivikakk]

@vojtechkral This is excellent -- thank you so much!

It is breaking, but that can't be helped with the API designed currently as it is. That's why we're in 0.x :)

Would you like a release for this, or are you happy to track main for now?

[vojtechkral]

Thanks for the quick review :)
No need for a release as far as I'm concerned, tracking git's perfectly fine until there's enough reasons for a new release...

[vojtechkral]

Actually, looks like I can't push my project to crates.io with a git dependency. Didn't know that was forbidden. So, if you feel like making a release in some near future that would help me. (But not a huge problem if inconvenient.)

[kivikakk]

Ahh, how frustrating. I have made it happen → 0.11.0.

[vojtechkral]

Brilliant, thanks!