v4.0.6

What's Changed

• Invalid langData (.traineddata files) are now cleared from cache (#753)
  • Note: setting cacheMethod: 'none' or cacheMethod: 'refresh' to prevent invalid files from being cached should no longer be necessary
    • See this comment for an explanation
• Added source maps to esm build (#761)
• Various updates to documentation

Full Changelog: v4.0.5...v4.0.6