README.md: Fix typos in README.md #1911

Job	Run time
packages (arm64-secure, arm64)	22m 32s
packages (ubuntu-20.04, amd64)	12m 8s
packages (ubuntu-latest, riscv64)	5m 6s
manifest	2m 49s
verification (arm64, kvm)	7m 48s
eve (arm64, kvm)	29m 39s
verification (arm64, xen)	7m 6s
eve (arm64, xen)	29m 28s
verification (amd64, kvm)	8m 7s
eve (amd64, kvm)	30m 38s
eve (amd64, xen)	26m 13s
verification (amd64, xen)	7m 33s
eve (riscv64, mini)	3m 19s
trigger_assets	0s
	3h 12m 26s

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