add instructions to platformer readme

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faiface 2017-04-22 14:22:09 +02:00
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This example demostrates a way to put things together and create a simple platformer game with a
Gopher!
Use **arrow keys** to move and jump around. Press **ENTER** to restart. (And hush, hush, secret.
Press TAB for slo-mo!)
The pixel art feel is, other than from the pixel art spritesheet, achieved by using a 160x120px
large off-screen canvas, drawing everything to it and then stretching it to fit the window.