--instance_name value name hint in `cvd help create` #818

Job	Run time
download-cidata-job	10s
build-cloud-installer-initramfs-job	8m 45s
build-cloud-installer-job	13m 37s
test-iso-multidisk-qemu-empty-disk-job	1h 51m 27s
test-iso-cf-container-qemu-job	1h 40m 18s
test-iso-qemu-job	1h 49m 1s
test-iso-cf-qemu-job	1h 37m 43s
test-iso-multidisk-qemu-disk5-with-data-job	1h 49m 9s
test-iso-multidisk-qemu-disk2-with-data-job	1h 46m 29s
	10h 56m 39s

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