Revise all job writing code

[josephjclark]

I'd like to take a fresh swing at the job writing guide.

The existing content is feeling outdated, inconsistent, overly complicated.

I think I'd like a beginners guide which pretends that its just javascript, then an advanced guide which explains more about the DSL.

All examples and code snippets need updating

[mtuchi]

The Job Examples page has really old examples. We need to update examples to use the latest and greatest job writing patterns

job-examples.mp4

[martalovescoffee]

Any dev can take over this.