If you want your project to be listed on https://squeak.org/projects/, simply open a Pull Request and add your project's logo to img/projects as well as a markdown file to _projects. We will then review your description and logo, which will usually result in a quick accept and update of our website.
For example, the markdown file myproject.md should look like this:
---
title: My Project
img-src: projects/myprojectlogo.png
href: https://www.myprojectwebsite.com
---
Brief description about my project goes here.The logo should have the size of 200x200 pixels. The description should be in English and consist of about 50 words or less. Please choose a distinctive name for the files (i.e. markdown and logo). Double-check with the existing projects.