Scope for Sprint Week

• A user can sign in via GitHub OAuth, so that they participate in the community with a consistent identity.
• A user can create a new page for a problem, with a title and description, so that they can track the issues they care about.
• A user can access a problem page via a specific url for that page, so that they can share issue pages with their friends.
• A user can post comments on a problem page, so that they can add more ideas to an issue.
• A user can add themselves to a problem page, adding their picture to the "people who care" list, so that they can show the community that the issue is important.
• A user can see a list of the pages they've added themselves to, so that they can more quickly keep track of the issues they care about.