Merge pull request #23 from hasheddan/read-me

Author: hasheddan

README.md

@@ -1 +1,22 @@
 # Upbound Go SDK
+
+`up-sdk-go` is the official [Go] SDK for [Upbound]. It is currently under active
+development and subject to breaking changes.
+
+## Supported Services
+
+The following services are currently supported:
+- Accounts
+- Control Planes
+- Tokens
+
+## Authentication
+
+`up-sdk-go` currently defers authentication to the consumer by passing a
+configured `http.Client`. The [_examples] directory contains examples of how
+this can be accomplished with a `cookiejar` implementation and session tokens.
+
+<!-- Named Links -->
+[Go]: https://golang.org/
+[Upbound]: https://cloud.upbound.io/
+[_examples]: ./_examples