Cleanup code

proxy/app.ts

@@ -3,6 +3,10 @@ import IPC from './ipc';
 
 const args = process.argv.slice(2);
 
+// Proxy is a lightweight application which provides bi-directional communication
+// between the browser extension and a running desktop application.
+//
+// Browser extension <-[native messaging]-> proxy <-[ipc]-> desktop
 class Proxy {
     private ipc: IPC;
     private nativeMessage: NativeMessage;