Catch up with markdown-it v12.0.4

[hukkin]

A continuation on #109 (based on the branch there). Adds the changes in markdown-it/markdown-it@11.0.1...12.0.4 on top

#109 can be merged first and then this one (to make review easier), or this can be merged directly.

[codecov]

Codecov Report

Merging #110 (55bc081) into master (29a8d5e) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@ Coverage Diff @@ ## master #110 +/- ## ========================================== - Coverage 96.51% 96.51% -0.01%  ========================================== Files 72 72 Lines 3185 3183 -2 ========================================== - Hits 3074 3072 -2  Misses 111 111 

Flag	Coverage Δ
pytests	96.51% <100.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
markdown_it/renderer.py	98.19% <ø> (-0.02%)	⬇️
markdown_it/rules_inline/strikethrough.py	97.40% <ø> (ø)
markdown_it/rules_inline/autolink.py	96.22% <100.00%> (-0.07%)	⬇️

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[hukkin]

[12.0.4] - 2020-12-20

Fixed

• Fix crash introduced in 12.0.3 when processing strikethrough (~~) and similar plugins, #742.
• Avoid fenced token mutation, #745.

[12.0.3] - 2020-12-07

Fixed

• [](<foo<bar>) is no longer a valid link.
• [](url (xxx()) is no longer a valid link.
• [](url\ xxx) is no longer a valid link.
• Fix performance issues when parsing links (#732, #734), backticks, (#733, #736),
  emphases (#735), and autolinks (#737).
• Allow newline in <? ... ?> in an inline context.
• Allow <meta> html tag to appear in an inline context.

[12.0.2] - 2020-10-23

Fixed

• Three pipes (|\n|\n|) are no longer rendered as a table with no columns, #724.

[12.0.1] - 2020-10-19

Fixed

• Fix tables inside lists indented with tabs, #721.

[12.0.0] - 2020-10-14

Changed

• Added 3rd argument to highlight(code, lang, attrs), #626.
• Rewrite tables according to latest GFM spec, #697.

Fixed

• Fix mappings for table rows (amended fix made in 11.0.1), #705.
• %25 is no longer decoded in beautified urls, #720.

[chrisjsewell]

I think maybe split this up into a few defined commits, e.g. one for links, one for the table etc?

For tables what is the actual difference? are there table syntaxes that were not allowed before or are allowed now? Is there any tests we can add to highlight the difference?

[chrisjsewell]

is there any tests we can add to highlight the difference?

ah oops, I missed the changes to tables.md (because the diff was collapsed)

[hukkin]

I think maybe split this up into a few defined commits, e.g. one for links, one for the table etc?

This might be nice to have, but at least I find it hard to motivate myself to do this 😄 I don't mind at all if you take the changes and redo the commit history.

For tables what is the actual difference? are there table syntaxes that were not allowed before or are allowed now? Is there any tests we can add to highlight the difference?

The test cases I re-added show some changes. I think it's a bit hard to argue more about the changes, since previously there was no formal spec that was followed.

[chrisjsewell]

I don't mind at all if you take the changes and redo the commit history.

@hukkinj1 with any luck this should have now been fully covered by #140
If you want to check and close this

[hukkin]

Nice, I merged master to this and as a result there's still a few changes left here that seem like they belong in master.

[chrisjsewell]

From the merge conflicts I noticed a few minor errors that I'm just about to commit