One of the goals of the demo is to see which parts of the game are well communicated to the player and which parts aren't. This allows me to know what parts I need to clarify to players. Explaining stuff on the Itch page defeats the purpose.
For example, you can right click adventurers in the guild for additional info on stats. You can also right click them in combat (not their portraits though, their actual bodies) for that information, and information on the enemies. But it's good to know that these parts aren't clear, so know I to add it explicitly to a tutorial later.
Less than four to a dungeon is in (not in the tech demo though), you aren't the first to request that :)