Convert 4 (Man Page) to TEXT HADDOCK

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 Haddock Markup Language, is used for documentation in Haskell programming. Haddock is a tool for generating documentation from annotated Haskell source code. It uses a lightweight markup language, similar to LaTeX, to format the documentation. The history of Haddock dates back to its creation by Simon Marlow and others as part of the GHC (Glasgow Haskell Compiler) project. It has since become a standard tool in the Haskell community for creating comprehensive and readable documentation.