fix websockets chat example (#591)

websockets/chat/README.md

@@ -1,13 +1,14 @@
 # Websocket chat example
 
-This is extension of the [actix chat example](https://github.com/actix/examples/tree/HEAD/websockets/chat)
+This is a multi-threaded chat server example.
 
-Added features:
+Fancy shiny features:
 
-- Browser WebSocket client
+- Browser-based WebSocket client served from static html+js
 - Chat server runs in separate thread
 - Tcp listener runs in separate thread
 - Application state is shared with the websocket server and a resource at `/count/`
+- Uses actors for improved readability of code in the server.rs implementation
 
 ## Server
 
@@ -17,18 +18,22 @@ Added features:
 - `/join name` - join room, if room does not exist, create new one
 - `/name name` - set session name
 - `some message` - just string, send message to all peers in same room
-- client has to send heartbeat `Ping` messages, if server does not receive a heartbeat message for 10 seconds connection gets dropped
+- client has to respond to heartbeat `Ping` messages, if server does not receive a heartbeat 'Pong' message for 10 seconds connection gets dropped
 
 2. [http://localhost:8080/count/](http://localhost:8080/count/) is a non-websocket endpoint and will affect and display state.
 
 To start server use command: `cargo run --bin websocket-chat-server`
 
-## Client
-
-Client connects to server. Reads input from stdin and sends to server.
-
-To run client use command: `cargo run --bin websocket-chat-client`
-
 ## WebSocket Browser Client
 
 Open url: [http://localhost:8080/](http://localhost:8080/)
+Use two tabs to set up a proper conversation.
+
+## Python Client using aiohttp
+
+Client connects to server. Reads input from stdin and sends to server.
+Fetch the needed python libraries `pip3 install --requirements requirements.txt`
+Then start client as `./client.py`
+
+
+