Convert 4 (Man Page) to TEXT MARKDOWNSTRICT

The 4 file extension refers to Unix Section 4 Manual Pages, which document special files and device drivers. These files, such as "mouse.4", describe how devices interact with the Unix operating system and are accessed using the "man" utility. Historically, these manual pages have been a fundamental part of Unix documentation, helping users understand and manage system devices.

The TEXT file extension, associated with Unextended Markdown Documentation, is used for plain text files that contain Markdown-formatted text. Markdown is a lightweight markup language designed to be easily readable and writable, enabling users to format text using simple syntax. These files are widely used for documentation, notes, and content creation due to their simplicity and portability across different platforms and applications.