update README

README.md

@@ -1,2 +1,11 @@
 # SpikeInteface-Hackathon-Edinburgh-May24
+
 Repo for SpikeInterface Hackathon in Edinburgh - May24
+
+## How to submit a project?
+
+To propose a new project, you can simply open a new issue with the `New Project` template and fill in the information.
+This will automatically make a PR that creates the project folder, a `README` file with the description, and a `src `folder that groups can optionally use to collaborate.
+If you want to participate to an already proposed project, you can simply add a comment to the PR of the project with your GitHub handle. 
+We will keep all PRs open until the hackathon, so that all projects will be easily discoverable.
+We expect every participant either propose or join a project before the hackathon, so that teams can be pre-organized.