Convert TEXT MARKDOWNPHPEXTRA to 5 (Man Page)

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 5 file extension refers to Unix Section 5 Manual Pages, which document file formats and conventions used in Unix-like operating systems. These manual pages, accessible via the "man" utility, provide detailed information on system-level file formats, such as "deb.5" for the DEB file format. Historically, Section 5 has been a crucial resource for system administrators and developers to understand and manage various file formats and system conventions in Unix environments.