Show HN: Writemark, a dependency free web component for inline Markdown editing

Writemark is a dependency-free web component for inline Markdown editing that can be embedded anywhere with a single HTML tag, offering live rendering, multiple editing modes, and slash commands without requiring any framework or external dependencies at runtime. The creator built it as a personal solution to avoid plain textareas while writing Markdown, and it includes 951 test cases across multiple browsers to ensure reliability and security.