GitHub Flavored Markdown (GFM) is a lightweight markup language that extends standard Markdown to include additional features specifically designed for use on GitHub. It allows users to format text easily, create lists, add links, and include images, making it ideal for writing documentation, README files, and comments on code. GFM supports unique elements like task lists, tables, and strikethrough text, enhancing collaboration among developers. It also allows for syntax highlighting in code blocks, improving readability. Overall, GFM provides a user-friendly way to present information clearly and effectively within the GitHub platform.