Update examples.md
Update examples.md

I've started providing examples here as it's easier to comprehend something when you've an example to refer to. I've also slightly tweaked the language here and there; hope that's okay. There's more to do but I'm afraid the boys are awake and so I'llhave to stop for now.

PS deliberately used Knockout twice as I thought the contrast was instructive. Happy to include another example of a more standard npm package such as lodash as well
typings/typings,typings/typings