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@@ -110,3 +110,6 @@ This should be updated fairly regularly. As usual, **pull requests are encourage
 * [ApiDoc](https://github.com/apidoc/apidoc) RESTful web API Documentation Generator that creates documentation from API descriptions in your source code. (contributed by [Trenton Broughton](https://github.com/trenton42))
 * [Documentation theme for Jekyll](http://idratherbewriting.com/documentation-theme-jekyll/) - Documentation theme built on Jekyll. Includes detailed notes on how to tackle nearly every technical documentation scenario, from single sourcing to conditional filtering, PDF output, relative links, and more.
 * [JSDoc](http://usejsdoc.org/) - Generate JavaScript API documentation directly from source code comments. Also useful as a style guide for JS commenting, in general. Google uses a version of JSDoc tags for its [Closure compiler](https://github.com/google/closure-compiler/wiki/Annotating-JavaScript-for-the-Closure-Compiler).
+* [Asciidoctor](http://asciidoctor.org/) - Asciidoctor is a fast text processor and publishing toolchain for converting AsciiDoc content to HTML5, DocBook 5 (or 4.5) and other formats. (contributed by [ThomasG77](https://github.com/ThomasG77))
+* [Bookdown](https://bookdown.org/) - A open-source (GPL-3) R package to facilitate writing books and long-form articles/reports with R Markdown. Support for languages other than R, including C/C++, Python, and SQL, etc. (contributed by [ThomasG77](https://github.com/ThomasG77))
+* [Pandoc](http://pandoc.org/) If you need to convert files from one markup format into another, pandoc is your swiss-army knife. Can generate documentation from most common markup languages. (contributed by [ThomasG77](https://github.com/ThomasG77))