ConciseMark – a simplified Markdown parsing library in Rust

ConciseMark is a simplified markdown parsing library written in Rust with customization, math supporting in mind. The simplified here means it only supports some common markdown syntax but not full.

And I also update my nvim-previewer(https://github.com/ikey4u/nvim-previewer) plugin to use concisemark because I want to preview math equation which neither pulldown-cmark nor comrak supports.