update README

README.md

@@ -1,7 +1,18 @@
 # wgsd
-`wgsd` is a CoreDNS plugin that provides Wireguard peer information via DNS-SD semantics. See [this blog post](https://www.jordanwhited.com/posts/wireguard-endpoint-discovery-nat-traversal/) for the background and reasoning behind it.
+`wgsd` is a [CoreDNS](https://github.com/coredns/coredns) plugin that provides WireGuard peer information via DNS-SD ([RFC6763](https://tools.ietf.org/html/rfc6763)) semantics. This enables dynamic discovery of WireGuard Endpoint addressing (both IP and port) with the added of benefit of NAT-to-NAT WireGuard connectivity where [UDP hole punching](https://en.wikipedia.org/wiki/UDP_hole_punching) is supported.
 
-In order to use this plugin with CoreDNS first you need to [enable it](https://coredns.io/2017/07/25/compile-time-enabling-or-disabling-plugins/). Once it's enabled it can be configured like so:
+See [this blog post](https://www.jordanwhited.com/posts/wireguard-endpoint-discovery-nat-traversal/) for a deep dive on the underlying techniques and development thought.
+
+## Installation
+External CoreDNS plugins can be enabled in one of two ways:
+
+1. [Build with compile-time configuration file](https://coredns.io/2017/07/25/compile-time-enabling-or-disabling-plugins/#build-with-compile-time-configuration-file)
+2. [Build with external golang source code](https://coredns.io/2017/07/25/compile-time-enabling-or-disabling-plugins/#build-with-external-golang-source-code)
+
+For method #2 you can simply `go build` the contents of [cmd/coredns](cmd/coredns). The resulting binary is CoreDNS server with all the "internal" plugins + `wgsd`.
+
+A basic client is available under [cmd/wgsd-client](cmd/wgsd-client).
+## Configuration
 
 ```
 .:53 {
@@ -13,6 +24,12 @@ For example:
 ```
 $ cat Corefile
 .:53 {
-  wgsd jordanwhited.net. utun4
+  wgsd example.com. wg0
 }
-```
+```
+
+## Example Data
+
+## TODOs
+- [ ] SOA record support
+- [ ] CI & release binaries