add comments, and documents #4

Job	Run time
build (keyball39, via) / Build a firmware keyball39:via	1m 22s
build (keyball44, default) / Build a firmware keyball44:default	1m 18s
build (keyball39, test) / Build a firmware keyball39:test	1m 36s
build (keyball39, default) / Build a firmware keyball39:default	1m 21s
build (keyball44, test) / Build a firmware keyball44:test	1m 22s
build (keyball44, via) / Build a firmware keyball44:via	1m 19s
build (keyball46, default) / Build a firmware keyball46:default	1m 20s
build (keyball46, test) / Build a firmware keyball46:test	1m 18s
build (keyball46, test_Both) / Build a firmware keyball46:test_Both	1m 18s
build (keyball46, test_Left) / Build a firmware keyball46:test_Left	1m 19s
build (keyball46, via) / Build a firmware keyball46:via	1m 17s
build (keyball46, via_Both) / Build a firmware keyball46:via_Both	1m 17s
build (keyball46, via_Left) / Build a firmware keyball46:via_Left	1m 18s
build (keyball61, default) / Build a firmware keyball61:default	1m 17s
build (keyball61, test) / Build a firmware keyball61:test	1m 19s
build (keyball61, via) / Build a firmware keyball61:via	1m 18s
build (one47, default) / Build a firmware one47:default	1m 17s
build (one47, test) / Build a firmware one47:test	1m 19s
build (one47, via) / Build a firmware one47:via	1m 18s
Check size	2s
	25m 15s

Provide feedback