Just released a minor demo update with the help screen improvements and
quick / auto save!

Release notes:-

• Improved help UI screen, now lists links to tutorial videos, and has a quick reference guide.
• Implemented basic quick save / load world functionality (using F5 / F9 keys respectively by default).
• Implemented basic auto save world functionality with a configurable time interval between saves (see “gameplay” options menu).
• Bug fixes.