readme: some updates to the README #1747

Job	Run time
check-commits	9s
build-server (default, centos, amd64)	1m 0s
build-client (centos, amd64)	39s
build-server (default, fedora, amd64)	56s
build-client (fedora, amd64)	35s
build-server (default, fedora, arm64)	18m 28s
build-ad-server (default, fedora, amd64)	1m 19s
build-client (fedora, arm64)	9m 9s
checks	4s
build-server (default, opensuse, amd64)	58s
build-ad-server (default, fedora, arm64)	29m 46s
build-client (opensuse, amd64)	44s
build-client (opensuse, arm64)	4m 55s
build-ad-server (default, opensuse, amd64)	1m 20s
build-server (default, opensuse, arm64)	5m 38s
build-ad-server (default, opensuse, arm64)	6m 37s
build-server (nightly, centos, amd64)	1m 56s
build-ad-server (nightly, centos, amd64)	1m 19s
build-server (nightly, fedora, amd64)	1m 2s
build-ad-server (nightly, fedora, amd64)	1m 23s
build-server (nightly, fedora, arm64)	18m 26s
build-server (devbuilds, centos, amd64)	1m 15s
build-ad-server (nightly, fedora, arm64)	28m 33s
build-toolbox (centos, amd64)	48s
build-toolbox (fedora, amd64)	44s
build-toolbox (opensuse, amd64)	49s
test-server (default, centos, amd64)	15s
test-server (default, fedora, amd64)	21s
test-server (default, opensuse, amd64)	12s
test-server (nightly, centos, amd64)	15s
test-server (nightly, fedora, amd64)	23s
test-server (devbuilds, centos, amd64)	22s
test-ad-server-kubernetes (default, fedora, amd64)	1m 34s
test-ad-server-kubernetes (default, opensuse, amd64)	1m 32s
test-ad-server-kubernetes (nightly, centos, amd64)	1m 27s
test-ad-server-kubernetes (nightly, fedora, amd64)	1m 33s
push	0s
	2h 26m 26s

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