Contribution Guidelines

Please ensure your pull request adheres to the following guidelines:

Search previous suggestions before making a new one, as yours may be a duplicate.
Make sure your list is useful before submitting. That implies it having enough content and every item a good succinct description.
Make an individual pull request for each suggestion.
Use the following format: [List Name](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.
The pull request and commit should have a useful title.

Thank you for your suggestions!

(this file was mostly copied from awesome-speaking)