Convert TEXT MARKDOWNPHPEXTRA to DBK

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 DBK file extension stands for DocBook Technical Document, a semantic markup language used for creating technical documentation in a format-neutral way. Initially developed for computer hardware and software documentation, it allows content to be easily converted into various formats like HTML and PDF. DocBook has become a standard for technical documentation due to its flexibility and open-source nature.