Add Milou and Marketing section (#167)

Milou is a static-site generator for press kits (aka media kits). It
let's people create static press kits using YAML and is developed in
node.js. It's inspired by presskit() and based off presskit.html

My PR adds a new section called Marketing because I don't think this
project really fits into any of the existing section.

README.md

@@ -11,6 +11,7 @@ A static web site generator is an application that takes plain text files and co
     *   [CMS](#cms)
     *   [Documentation](#documentation)
     *   [Science](#science)
+    *   [Marketing](#marketing)
     *   [Frameworks](#frameworks)
     *   [Photography](#photography)
     *   [Single Page](#single-page)
@@ -92,6 +93,10 @@ A static web site generator is an application that takes plain text files and co
 
 *   [Curvenote](https://curvenote.com/docs/web) - Build scientific and technical websites for books, preprints, papers and reports using MyST Markdown and Jupyter Notebooks - `#Node.js`
 
+### Marketing
+
+*   [Milou](https://github.com/Tsukumogami-Software/milou) - Create beautiful and informative press kits to showcase your company and products to the medias - `#Node.js`
+
 ### Code Playground
 
 *   [CodeStage](https://github.com/shi-yan/codestage) - A static site generator to create javascript playgrounds / interactive demos.