league/commonmark 2.4.0 on PHP Packagist

See the upgrading guide for more information about the exception-related changes

Added generic CommonMarkException marker interface for all exceptions thrown by the library
Added several new specific exception types implementing that marker interface:
- AlreadyInitializedException
- InvalidArgumentException
- IOException
- LogicException
- MissingDependencyException
- NoMatchingRendererException
- ParserLogicException
Added more configuration options to the Heading Permalinks extension (#939):
- heading_permalink/apply_id_to_heading - When true, the id attribute will be applied to the heading element itself instead of the <a> tag
- heading_permalink/heading_class - class to apply to the heading element
- heading_permalink/insert - now accepts none to prevent the creation of the <a> link
Added new table/alignment_attributes configuration option to control how table cell alignment is rendered (#959)

Change several thrown exceptions from RuntimeException to LogicException (or something extending it), including:
- CallbackGenerators that fail to set a URL or return an expected value
- MarkdownParser when deactivating the last block parser or attempting to get an active block parser when they've all been closed
- Adding items to an already-initialized Environment
- Rendering a Node when no renderer has been registered for it
HeadingPermalinkProcessor now throws InvalidConfigurationException instead of RuntimeException when invalid config values are given.
HtmlElement::setAttribute() no longer requires the second parameter for boolean attributes
Several small micro-optimizations
Changed Strikethrough to only allow 1 or 2 tildes per the updated GFM spec

Fixed inaccurate @throws docblocks throughout the codebase, including ConverterInterface, MarkdownConverter, and MarkdownConverterInterface.
- These previously suggested that only \RuntimeExceptions were thrown, which was inaccurate as \LogicExceptions were also possible.