Markdown Callouts

markdown-callouts is a Python-Markdown extension that enhances documentation with admonition-style callouts. It supports various syntaxes, including a flexible original style (e.g., `NOTE:`), collapsible blocks (`>? TIP:`), and the GitHub 'alerts' syntax (`> [!NOTE]`). The current version is 0.4.0, and new features are added incrementally, often focusing on compatibility with existing Markdown parsers and popular documentation tools like MkDocs.