Explain worker publication mechanism

Depends arkindex/cli#125 (closed)

We need to explain the worker publication mechanism, shipped with !434 (merged)

changed milestone to %0.3.6

added Documentation P2 labels

assigned to @yschneider

changed milestone to %0.3.7

added P1 label and removed P2 label

Needs arkindex/cli#125 (closed)

Doable

mentioned in merge request !484 (merged)

closed with merge request !484 (merged)