Release v2.0.0

In this release, markdown-extract has been dramatically simplified, and comes
with a more sensible API out of the box. There are a number of breaking changes.

• Fixed matching headings inside code blocks.
• Remove --regex flag. All inputs will be treated as regular expressions.
• Remove --first flag. This is now the default behaviour.
• Add --all flag. When setting this flag, all matches will be printed (not
  just the first).
• Renamed --ignore-first-heading to --no-print-matched-heading. Behaviour is
  the same.
• Clarified help text for the --no-print-matched-heading flag.

Release v1.1.0

This release focuses on improving developer experience, and making markdown-extract available as a Docker image.

• Exit with code 1 if no matches are found (#3, thanks @brennerm)
• Publish markdown-extract as a Docker image (#2, thanks @brennerm)

Release v1.0.0

The first proper release of markdown-extract! 🎉

• Add --regex flag, which enables the use of regular expressions to search
  for section titles.
• Add --first flag, which only prints the first matching section.
• Fix an issue where extra newlines where inserted into the final output.

Release v0.1.1

Release v0.1.1