Relocated example and updated readme #4844

Job	Run time
pico (RPI_PICO)	2m 16s
picow (RPI_PICO_W)	2m 12s
tiny2040 (PIMORONI_TINY2040)	2m 31s
picolipo_4mb (PIMORONI_PICOLIPO_4MB)	2m 27s
picolipo_16mb (PIMORONI_PICOLIPO_16MB)	2m 13s
tufty2040 (PIMORONI_TUFTY2040)	2m 12s
enviro (PICO_W_ENVIRO)	2m 7s
galactic_unicorn (RPI_PICO_W)	2m 8s
cosmic_unicorn (RPI_PICO_W)	2m 26s
stellar_unicorn (RPI_PICO_W)	2m 8s
inky_frame (PICO_W_INKY)	2m 24s
	25m 4s

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