JSON lint

[nathany]

Maybe we should add a JSON linter on pull requests via CI? See #23.

[dgryski]

The current rustaceans code contains a webhook that verifies that the pull request modifies a single file that matches your github username, and if so merges it automatically. If we added linting, we could so something similar.

[dgryski]

We could also check for other formatting errors:

• twitter handle doesn't start with @
• blog link starts with http://, https://', or //

We could also fix some of these client-side at template render time.

[nathany]

Or fix up on the server side when preparing the JSON.