[whatwg] Minor presentational issue in draft-hixie-thewebsocketprotocol

[Adam Barth]

[[
Send the string "WebSocket-Origin" followed by a U+003A COLON (":")
followed by the ASCII serialization of the origin from which the
server is willing to accept connections, followed by a CRLF pair
(0x0d 0x0a).

   For instance:

        WebSocket-Origin: http://example.com
]]

The prose above is missing the space after the ":" that is present in
the example.  The next chunk of text, for WebSocket-Location, has the
same issue.

Adam