docs: add mkdocs to Documentation section

README.md

@@ -695,11 +695,16 @@ _Compile software from source code. If you're looking for Python packaging/build
 
 _Libraries for generating project documentation._
 
-- [sphinx](https://github.com/sphinx-doc/sphinx/) - Python Documentation generator.
-  - [awesome-sphinxdoc](https://github.com/ygzgxyz/awesome-sphinxdoc)
-- [mkdocs-material](https://github.com/squidfunk/mkdocs-material) - A documentation framework and Material Design theme built on MkDocs.
+### Documentation
+
+_Libraries for generating project documentation._
+
 - [diagrams](https://github.com/mingrammer/diagrams) - Diagram as Code.
+- [mkdocs](https://github.com/mkdocs/mkdocs) - Fast, simple and static site generator geared towards building project documentation.
+- [mkdocs-material](https://github.com/squidfunk/mkdocs-material) - A documentation framework and Material Design theme built on MkDocs.
 - [pdoc](https://github.com/mitmproxy/pdoc) - Epydoc replacement to auto generate API documentation for Python libraries.
+- [sphinx](https://github.com/sphinx-doc/sphinx/) - Python Documentation generator.
+- [awesome-sphinxdoc](https://github.com/ygzgxyz/awesome-sphinxdoc)
 - [zensical](https://github.com/zensical/zensical) - A modern static site generator for technical documentation.
 
 **DevOps**