Space Invaders!

devices/pc8080/machine/invaders/README.md

@@ -12,10 +12,14 @@ Space Invaders (1978)
 ---
 
 This is a test of [PC8080](/modules/pc8080/), a new 8080-based machine emulator recently added to the
-PCjs Project.  It's a work-in-progress, so it's not playable yet.  And the goal is not to build
-yet-another Space Invaders/Arcade Machine emulator -- that's been done many times over -- but to start with
-a well-understood 8080-based machine architecture that doesn't need a lot of peripherals, and use it as an
-early test case for another classic CPU that we can add to the PCjs toolbox.
+PCjs Project.  It is currently playable only in desktop browsers and uses the following hard-coded key mappings:
+
+- 1: One Player
+- 2: Two Player
+- 3: Insert Coin
+- A: Move Left
+- D: Move Right
+- L: Fire Missile
 
 Assorted [Space Invaders Hardware Notes](#space-invaders-hardware-notes) are collected below.