Prettified README

README.md

 **twspy** is a standalone implementation of web sockets for Python, defined by
 [RFC 6455](http://tools.ietf.org/html/rfc6455).
 
-- The websocket class upgrades a regular socket to a web socket. A websocket
-  instance is a single end point of a connection. A websocket instance sends
-  and receives frames (Frame instances) as opposed to bytes (which is received
-  in a regular socket).
+- The `websocket` class upgrades a regular socket to a web socket. A websocket
+  instance is a single end point of a connection. A `websocket` instance sends
+  and receives frames (`Frame` instances) as opposed to bytes (which are
+  sent/received in a regular socket).
 
-- A Connection instance represents a connection between two end points, based
-  on a websocket instance. A connection handles control frames properly, and
-  sends/receives *messages* (which are higher-level than frames). Messages are
-  automatically converted to frames, and received frames are converted to
-  messages. Fragmented messages (messages consisting of multiple frames) are
-  also supported.
+- A `Connection` instance represents a connection between two end points, based
+  on a `websocket` instance. A connection handles control frames properly, and
+  sends/receives messages (`Message` instances, which are higher-level than
+  frames). Messages are automatically converted to frames, and received frames
+  are converted to messages. Fragmented messages (messages consisting of
+  multiple frames) are also supported.