Numbering issue with private pages

[jmorel]

When remove=true, private pages are still taken into account when generating section numbers in the table of contents.

For example with this summary.md:

# Summary

- [Chapter 1](./chapter_1.md)
  - [Sub chapter](./_chapter_1_sub.md)
- [Chapter 2](./_chapter_2.md)
  - [Sub chapter](./chapter_2_sub.md)
- [If remove=false, should be numbered 3 else should be 2](./chapter_3.md)

If remove=true:

if remove=false:

I'm guessing the issue also occurs with sub sections.

[RealAtix]

Hi, thanks for reporting. I will look into it.

It will indeed also occur in subsections.

[RealAtix]

Please check #7