add TODOs to notice

_NOTICE

@@ -1,3 +1,18 @@
-this code is largely incomplete and not in a presentable state.
+this program is largely incomplete and not in a presentable state.
 please be mindful when sharing it.
-however, feel free to gut out any snippets you find useful.
+however, feel free to copy any snippets of code you find useful.
+
+TODOs: (that i can remember right now)
+- finish implementing backprop
+- replace evolution strategy algorithm with
+  something that utilizes gradients like PPO
+- settle on a network architecture
+- normalize and/or embed sprite inputs
+- fix lag-frames skipped-inputs bug
+- fix offscreen sprites sometimes being visible to network
+- add some detection for enemies later in the game
+
+naive:
+- learn any combination of buttons, starting from title screen
+- learn to run network without frameskip
+- learn other games

main.lua

@@ -905,7 +905,7 @@ while true do
         W(0x75A, 1)
     end
 
-    -- FIXME: if  the game lags then we might miss our frame to change inputs!
+    -- FIXME: if the game lags then we might miss our frame to change inputs!
     --        don't rely on emu.framecount.
     local doot = jp == nil or emu.framecount() % frameskip == 0
     doit(not doot)