docs(README): Correct organization for custom kernel akmods #349

Job	Run time
Build and push akmods image (main, common, 37, 0)	8m 51s
Build and push akmods image (main, common, 38, 0)	8m 36s
Build and push akmods image (main, common, 39, 0)	5m 42s
Build and push akmods image (main, nvidia, 37, 470)	9m 15s
Build and push akmods image (main, nvidia, 37, 535)	7m 59s
Build and push akmods image (main, nvidia, 38, 470)	8m 17s
Build and push akmods image (main, nvidia, 38, 535)	7m 4s
Build and push akmods image (main, nvidia, 39, 470)	5m 39s
Build and push akmods image (main, nvidia, 39, 535)	6m 37s
Build and push akmods image (asus, common, 38, 0)	9m 31s
Build and push akmods image (asus, common, 39, 0)	6m 34s
Build and push akmods image (asus, nvidia, 38, 470)	8m 10s
Build and push akmods image (asus, nvidia, 38, 535)	8m 55s
Build and push akmods image (asus, nvidia, 39, 470)	8m 10s
Build and push akmods image (asus, nvidia, 39, 535)	9m 20s
Build and push akmods image (surface, common, 38, 0)	10m 8s
Build and push akmods image (surface, nvidia, 38, 535)	12m 13s
Check all builds successful	2s
	2h 21m 3s

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