Update Getting Started

Bring Getting Started up-to-date

We should also remove the term "experimental" from this string in the About Dialog:

```js
        "EXPERIMENTAL_BUILD"       : "experimental build",
```

But I wasn't sure if it's OK to just update the string, or also update the string id?

@MarcelGerber Good question. This will be 1.0, so I think "new" still applies. But, it should probably be removed after that.