build(deps-dev): bump ex_doc from 0.21.2 to 0.22.1

[dependabot-preview[bot]]

Bumps ex_doc from 0.21.2 to 0.22.1.

Changelog

Sourced from ex_doc's changelog.

v0.22.1 (2020-05-19)

• Bug fixes
  • [mix docs] Depend on earmark ~> 1.4.0
  • [mix docs] Don't crash on comments in markdown
  • [mix docs] Don't crash on HTML in markdown

v0.22.0 (2020-05-11)

• Enhancements

  • [EPUB] Add epub to the default formatters
  • [HTML+EPUB] Move specs out of signature
  • [HTML+EPUB] Auto-link "erlang" types & callbacks
  • [HTML+EPUB] Auto-link "erlang" modules in custom links
  • [mix docs] Warn on broken references in dependencies (e.g. `String.upcase/9`)
  • [escript] Add --app
  • [HTML+EPUB] Auto-link to extras (https://github.com/elixir-lang/ex_doc/blob/master/e.g. [foo](foo.md))
  • [mix docs] Undefined references warning now includes the filename
  • [mix docs] :skip_undefined_reference_warnings_on now also accepts a filename
  • [HTML+EPUB] Display moduledoc headings in the sidebar

• Bug fixes

  • [HTML] Fix hidden text selection, hide tooltips for details link
  • [HTML+EPUB] Fix function name sorting (group operators together)
  • [HTML+EPUB] Fix displaying nested modules

• Backwards incompatible changes

  • [mix docs] Remove built-in support for cmark markdown processor
  • [mix docs] Replace ExDoc.Markdown.to_html/2 with to_ast/2
  • [HTML+EPUB] Remove auto-linking for local calls to Kernel & Kernel.SpecialForms, use fully qualified calls instead. (e.g. replace `==/2` with `Kernel.==/2`.)
  • [mix docs] :skip_undefined_reference_warnings_on no longer accepts extras id, use extras filename instead.

v0.21.3

• Enhancements

  • [HTML] Make "Exceptions" a module sub-grouping instead of a top-level group
  • [HTML] Automatically group deprecated modules
  • [HTML] Rely on prefers-color-scheme w/o night mode set
  • [HTML] Boost title on search results, add fun/arity to title
  • [mix docs] Initial work on support for multiple languages

• Bug fixes

  • [HTML] Many improvements to the search engine
  • [mix docs] Link to callback docs instead of copying them

Commits

• f9d41ed Release v0.22.1
• 0c8dd87 Make earmark version requirement stricter (#1170)
• a3ec2d0 Make AST processor hopefully more future proof
• fc945e9 Don't crash on markdown comments, closes #1169
• efbacfd Ignore fourth element in Earmark ast (#1166)
• d272497 Fix documentation of formatters defaults in README.md (#1163)
• 549687b Fix documentation of defaults for :formatters (#1162)
• dc50a79 Release v0.22.0
• 4183fe0 Rebuild assets
• 36ec685 Fix displaying auto-linked callbacks and types
• Additional commits viewable in compare view

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[dependabot-preview[bot]]

Superseded by #78.