Confusing key bindings.

In README.md you say 'a' for jump and 's' for action. But in fact, I have to press shift + 'a' instead of 'a' to jump and shift + 's' instead of 's' to take action. And if I press 'A' ('a' with CapsLk) or 'S' ('s' with CapsLk), nothing happens, no jumping, no actions. I cloned the repo and run it without changes.