The presentation discusses how software development has moved towards more frequent releases through DevOps practices. This requires documentation to also be updated quickly. Markup languages can help by allowing many contributors to collaborate easily on documentation. Specific markup languages mentioned include reStructuredText and Markdown, which can be processed by tools like Sphinx to generate documentation from plain text files. The presentation demonstrates how to use reStructuredText and emphasizes that markup languages, collaborative tools like GitHub, and automation are key to supporting modern rapid software development practices.