Sphinx

Sphinx is a popular open-source documentation generator, primarily used for Python projects but also capable of documenting other software. It supports reStructuredText and Markdown and can generate various output formats like HTML and PDF.

While not a video or audio editing tool, Sphinx can be used by video creators who develop software or tools related to video processing, web applications for video hosting, or other technical aspects of their work. It helps in creating well-structured and maintainable documentation for these projects.