Enable setting `guide-key/guide-key-sequence' to `t' so that any key sequence will pop up bindings.

To get lots of key bindings to pop up often (to learn quickly), simply configure like so:

    ;; When you press these prefix keys, key bindings are automatically
    ;; popped up after a short delay (1 second by default).
    (setq guide-key/guide-key-sequence t)