Convert TEXT MARKDOWNPHPEXTRA to 8 (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 8 file extension refers to Unix Section 8 Manual Pages, which document system administration commands, daemons, and hardware-related commands. These files are part of the Unix operating system's manual pages and are intended to be viewed using the "man" utility. Each 8 file is named after the command it describes, such as "shutdown.8" for the shutdown command. Historically, Unix manual pages have been a fundamental part of Unix documentation since the early 1970s, providing essential information for system administrators and users.