Release v1.0.6

Added

• The Chronicle Workbench is now exposed from the Stage image on port 35000, so a play session's events, observers and read models can be inspected while it runs. Publish the port and browse https://localhost:35000 — the kernel's API and OAuth authority are served there too.
• The container prints the session's URLs — Stage API, API reference and Workbench — when it starts.
• Documentation for both images and for a running session: what is inside them, how they boot, their ports, mount points and configuration, and every URL a session exposes.

Fixed

• The specification runner container no longer fails when run without arguments. Its default --model pointed at /model/event-model.json, but a model is a folder of .play files, so the default is now the /model folder itself.