Thanks for letting us know about these things, much appreciated!
We'll fix that with the next update!
The torch's description says it can be placed on a wall but I can't seem to do that?
Being able to place torches on walls is indeed planned, but we're still unsure about whether torches should be always placeable, or if the player has to place "torch mounts" first (similar to how it worked in the Java version)
This is the reason why torches cannot be placed on walls yet.
Should 'Toro lantern be in the 'Lights' category?
Good question... of course it would also fit to the "Lights" category. We put it in the "Decoration" category because the lantern does not emit any light, so it is used for decorational purposes only.
The steel tools all have 'robust' in the description which implies they're less likely to break. If tool degradation isn't planned maybe this should be removed and the tools simply described as more efficient?
Yes, tool degradation is indeed planned (although it will be an optional feature), and the steel tools will be much more durable 
Rifle description mentions musket but that's not in the list... maybe it's coming?
Yes, we will add a musket (as well as other firearms) in the near future 
We just took the rifle description from the Java version (where a musket was already available)
Does a splint speed up healing (sorry I don't know the mechanics of that)? If so description needs a rewrite
The splint can only be used if you have a bone fracture. A broken bone slows down your movement (and you can't jump with a broken bone), but you can cure it by using a splint (it also restores a small amount of health). More precisely, it doesn't instantly heal your bone fracture, instead it restores your mobility (so jumping and faster movement are possible again), but it has some limitations, because you easily tend to break your bone again if you're not careful enough. After a given amount of time, your bone fracture is fully cured.