Convert TEXT MARKDOWN to OPML

A TEXT file extension, associated with Markdown Documentation, which simplifies writing and formatting text for web and technical documentation. Markdown, created by John Gruber in 2004, facilitates easy-to-read, plain-text documents that can be converted to HTML. It's essential for developers and writers to create structured documents quickly and efficiently, enhancing productivity and readability without complex code.

OPML, or Outline Processor Markup Language, is a file format utilized primarily for outlining data structures. Initially developed in 2000 by UserLand Software, OPML was designed to facilitate the exchange of outline-based information between different software applications. Its uses have expanded over time, notably in organizing RSS feed lists and managing hierarchical data. The OPML file extension denotes XML-based documents that offer simplicity and interoperability in transferring structured information across diverse platforms. In essence, OPML serves as a versatile tool in the realm of data organization and syndication.