Contribution Guidelines

Please ensure your pull request adheres to the following guidelines:

Make an individual pull request for each suggestion.
Titles should be capitalized.
Use the following format: [Cool JSON Data Set](link)
Link additions should be added to the bottom of the relevant category.
New categories or improvements to the existing categorization are welcome.
Check your spelling and grammar.
Make sure your text editor is set to remove trailing whitespace.
Run npm test to check for trailing whitespace (optional)
The pull request and commit should have a useful title.

Thank you for your suggestions!