Contributing is simple, all you need is an account with github. In case you don't have one yet, you can open it in less than a minute (and of course for free). When logged in, select the file you want to edit and click the edit button (the pen). Hit the propose file change button at the bottom once you are finished.
If you are an experienced Github user, you can also just fork this repo and submit a pull request (PR) with proposed additions. Please keep one puzzle per per pull request.
Let's keep each entry in the list short and precise.
Use the following structure:
- The Name-of-puzzle Puzzle: Short explanation of puzzle. (citation where puzzle is first mentioned as 'authors', 'year', 'journal')
In each category, most recent puzzles are listed first.
Feel free to add yourself to the list of contributors!