The unofficial zkSync Ecosystem directory maintained by the DappsList.net team.
The theme was developed by Stoman.
Fork this repo, create a new branch, and then change the src/data/projects.js file.
Make sure to also add the image in the src/assets/images/projects folder, unless you'll add an image link from a third-party source. The image should not be too big (try less than 200kb), so that it does not load too long.
After you make the necessary changes, create a PR in this repo.