Add more to resources page

[rpruim]

I've added a section with all of the references in our BibTex file (and a link to the bibtex source file).

Also added a link to the Stanford Encyclopedia of Philosophy.

[rpruim]

As @kcarnold mentioned in email, in addition to adding more resources, we will need to decide how to organize them and what things to include.

[kcarnold]

To start the discussion about what kinds of things to include:

• If people want resources like ours but different, we could link to related projects (ethicalcs.github.io, Harvard Embedded EthiCS)
• If people want a bigger picture of the tech ethics space, we can link to organizations, books (documentaries, and overview articles like the ACM Selects series and the Oxford Handbook, maybe the Loukides book... perhaps @dschuurman or others can add some more resources here for CS / engineering ethics.
• If educators want a bigger picture of what teaching tech ethics looks like, we can link to articles like (What Do We Teach and Teaching Responsible Data Science come to mind) and other well-known courses like the fast.ai data ethics course)
• If people want to have something to "follow", we can link to podcasts, conferences (FAccT and its network), blogs, etc.

Since there are a great many resource lists already out there, I suggest we emphasize what we're good at. For example, we can focus on resources for virtue ethics in tech, articles that ground ethics in principles, suggestions that are applicable to individual and organizational behavior, etc. And within each category, keep a maximum of n items. (for some choice of n probably less than 10)