Convert TEXT MARKDOWNPHPEXTRA to MD

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.

The MD file extension stands for "Markdown Documentation", a lightweight markup language used primarily for creating formatted text using a plain-text editor. Originally created by John Gruber in 2004, Markdown aims to be an easy-to-read and easy-to-write syntax for web content creation. Its primary use is in documentation files, readme files, and other technical documents where both simplicity and readability are paramount. The MD extension facilitates smooth conversion into HTML and other formats, making it an essential tool for developers and technical writers.