New feature to cut TOC items down to a given level

[marco-brandizi]

This tool is great! I'd like to suggest this improvement: allow me to specify the deepest heading level I want to consider to build the TOC, e.g., --max-level 2, it will only consider # and ## headers, it will skip from ### or more.

[ekalinin]

Hi @marco-brandizi

Please, look on the go-based version of this tool:

• https://github.com/ekalinin/github-markdown-toc.go

It has such option: --depth

[marco-brandizi]

Cool! Thank you!