Fixes#35
Updates https://github.com/tendermint/coding/issues/27
Started a doc.go file to provide an overview/high level
dive into the functionality of this repo.
Also added an example_test.go file in which we can
put end-to-end code examples/actual usage patterns
that can be copied and pasted and will always have to
compile when tests are run to ensure that we don't regress.
Emmanuel Odeke