Convert TXT COMMONMARK to MKDN

The TXT file extension is associated with CommonMark Markdown Language, a simplified markup language designed for easy readability and writability. Markdown is widely used in documentation, blogging, and formatting readme files in software development. Introduced in 2014, CommonMark aims to standardize Markdown's diverse implementations. Its clarity and simplicity make it a preferred choice for developers and technical writers seeking to maintain clean, structured documents.

An MKDN (Markdown Documentation) file extension is utilized primarily for creating structured text documents using Markdown language, which is a lightweight markup language. This language simplifies the process of formatting text, converting it into HTML, and enhancing readability with plain text formatting syntaxes. MKDN files are highly favored for documentation in software development, due to their ability to seamlessly integrate with various tools and platforms, providing an efficient way to maintain and share documentation.