[Topics](https://help.github.com/articles/about-topics/) help you explore repositories in a particular subject area, learn more about that subject, and find projects to contribute to.
[Collections](http://github.com/collections) help you discover hand-picked repositories, developers, organizations, videos, and articles that share a common theme.
If you want to suggest edits to an existing topic page or collection, or curate a new one, read our [contributing guide](CONTRIBUTING.md) to get started. You can also [review a list of popular topics that need more context](topics-todo.md) to get an idea of where to start.
There are some lint tests in place to ensure each topic is formatted in the way we expect. Travis CI will run the tests automatically. If you want to run the tests yourself locally, you will need Ruby and Bundler installed.
Content is released under [CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/) which gives you permission to use content for almost any purpose (but does not grant you any trademark permissions). See [notices](notices.md) for complete details, including attribution guidelines, contribution terms, and software and third-party licenses and permissions.
