Actor section lacking usage example and important properties

[schnittchen]

Currently there is no code example of creating and using an actor.

I'm currently reading through one of the pony papers, and, "All actors in Pony are visible to other actors with capability tag but see themselves as ref." is not reflected in the section.

[ergl]

For the "see themselves as ref", we could probably reuse the material for the "Accessing an Actor with Arbitrary Transactions", although that requires talking about capabilities, which are not introduced until later in the tutorial.

[jemc]

I agree that linking to that Pony Pattern would be helpful for a deep dive into this concept, which we can cover more briefly and succinctly in the tutorial.