To do after merging:

• open a new issue for whitespace in inline code - Update remark parse v8 #8140 (comment)
  New issue Inline code not formatting correctly #8655
• go through all the open Markdown-related issues to check whether this PR fixed them and add tests
  • Tab-indented nested lists get collapsed and escaped #3223
• open an issue about these failed edge autolink cases
  New issue Unstable autolink format after #8630 #8654
• make sure that we have tests for the fixed issues:
  • Markdown doesn't format table correctly if column contains `` #3753
  • empty markdown lists  #4122
  • Code blocks in markdown list items with two or more empty lines may crash parser #4306
  • Double empty line in markdown lists changes marker #4369
  • markdown: invalid regular expression with link in paragraph in list item #5921
  • Hash sign stripped in markdown titles #6177
  • Update remark: print lists #6180
  • Corruption of shortcut reference link followed by parentheses #8226
  • Indented unordered lists formatted wrong if tab rather than spaces #8364

Originally posted by @thorn0 in #8140 (comment)

#8140 Playground