The osc.js example code in the documentation for WebSocketPort doesn't explicitly open the Port before sending to it

[colinbdclark]

At the moment, the documentation in the osc.js README that illustrates how to create a Web Socket connection omits a crucial step: opening the osc.WebSocketPort. Combined with #58, this creates a situation as described in #57 where osc.js is, well, "not working, no error." The documentation should be updated accordingly.