[NonGNU ELPA] Popon version 0.4

[ELPA update]

Version 0.4 of package Popon has just been released in NonGNU ELPA.
You can now find it in M-x package-list RET.

Popon describes itself as:
  "Pop" floating text "on" a window

More at https://elpa.nongnu.org/nongnu/popon.html