Convert TEXT MARKDOWNPHPEXTRA to MKDN

The TEXT file extension, associated with PHP Markdown Extra Documentation, refers to plain text files used to write and store documentation. These files are simple, human-readable, and can be easily converted to HTML using Markdown syntax. The TEXT extension is commonly used for README files, configuration files, and other documentation purposes. Markdown Extra enhances the basic Markdown syntax with additional features like tables, footnotes, and definition lists, making it a powerful tool for creating well-structured documentation.

An MKDN (Markdown Documentation) file extension is utilized primarily for creating structured text documents using Markdown language, which is a lightweight markup language. This language simplifies the process of formatting text, converting it into HTML, and enhancing readability with plain text formatting syntaxes. MKDN files are highly favored for documentation in software development, due to their ability to seamlessly integrate with various tools and platforms, providing an efficient way to maintain and share documentation.