Bump markdown-it from 9.1.0 to 10.0.0

[dependabot-preview]

Bumps markdown-it from 9.1.0 to 10.0.0.

Changelog

Sourced from markdown-it's changelog.

[10.0.0] - 2019-09-11

Security

• Fix quadratic parse time for some combinations of pairs, #583. Algorithm is
  now similar to one in reference implementation.

Changed

• Minor internal structs change, to make pairs parse more effective (cost is
  linear now). If you use external "pairs" extensions, you need sync those with
  "official ones". Without update, old code will work, but can cause invalid
  result in rare case. This is the only reason of major version bump. With high probability you don't need to change your code, only update version dependency.
• Updated changelog format.
• Deps bump.

Commits

• b5d7ea5 10.0.0 released
• 26eacad Browser files rebuild
• 3d24bda Deps bump
• 33dfd12 Changelog format update
• 07a62c6 Move nested delimiter info to opening token instead of inline state
• 3c67c8f Add funding info
• See full diff in compare view

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