Convert TEXT MARKDOWNPHPEXTRA to TEXT HADDOCK

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 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.