We currently have all of our example code for docs in examples_test.js, in varying forms of promises, callbacks and async/await forms. We should move all of these tests to a new folder (e.g. test/examples), split them up into files, and make sure they are all using async/await exclusively. The rationale for moving it to a new folder is that we will not be able to run these tests on node < 8 due to the use of async/await, but we still want to promote this use of the driver to users at large.