Add install instructions & simple examples

[bnvk]

In order for us curious folks to check this out :smile: @willscott told me a bit about this project and it sounds quite cool!

[willscott]

there's still some structure required to make this usable. In particular, I'm just starting to refactor a less static set of assumptions about how the client talks to the server, and provide a reasonable client CLI wrapping https://github.com/ryscheng/pdb/blob/master/libpdb/client.go

It's coming :smile:

[ryscheng]

Thanks! Agree with all of Will's points, will update this issue as soon as we flesh more of it out :-)

[willscott]

I've started up an initial server to poke against. instructions here: https://lists.riseup.net/www/arc/talek/2017-05/msg00000.html