Add complex workflow example.
Add complex workflow example.

Show a more complicated example of chaining tasks to build complex state
machines.  The example selects which method to continue with.

mattsanders-wf/furious,beaulyddon-wf/furious,beaulyddon-wf/furious,Workiva/furious,andreleblanc-wf/furious,rosshendrickson-wf/furious,Workiva/furious,andreleblanc-wf/furious,mattsanders-wf/furious,robertkluin/furious,rosshendrickson-wf/furious