Improve README.md

README.md

@@ -1,6 +1,15 @@
 # ngs-web-ui-proxy
 
-Work in progress.
+## Background
 
-Browser -- Websocket -- this project (transcoder) -- JSON-RPC -- NGS shell server
+* NGS shell server exposes JSON-RPC over Unix socket
+* We would like to connect to the NGS shell server from the browser
+
+## NGS Web UI Proxy
+
+This project is the transcoder/bridge between the browser and the NHS shell server.
 
+* Exposes Websocket interface to the clients
+* Talks JSON-RPC to the upstream, through Unix socket specified as command line argument
+
+Browser -- Websocket -- this project (transcoder) -- JSON-RPC -- NGS shell server