readme: some updates to the README #1752

Job	Run time
check-commits	8s
build-client (centos, amd64)	38s
build-server (default, centos, amd64)	57s
build-client (fedora, amd64)	37s
build-server (default, fedora, amd64)	1m 6s
build-client (fedora, arm64)	10m 14s
build-ad-server (default, fedora, amd64)	1m 23s
checks	4s
build-server (default, fedora, arm64)	17m 33s
build-client (opensuse, amd64)	42s
build-ad-server (default, fedora, arm64)	30m 55s
build-server (default, opensuse, amd64)	1m 13s
build-ad-server (default, opensuse, amd64)	1m 29s
build-server (default, opensuse, arm64)	5m 31s
build-ad-server (default, opensuse, arm64)	6m 29s
build-server (nightly, centos, amd64)	1m 18s
build-client (opensuse, arm64)	4m 46s
build-ad-server (nightly, centos, amd64)	1m 35s
build-server (nightly, fedora, amd64)	57s
build-ad-server (nightly, fedora, amd64)	1m 29s
build-server (nightly, fedora, arm64)	18m 54s
build-ad-server (nightly, fedora, arm64)	30m 19s
build-server (devbuilds, centos, amd64)	1m 42s
build-toolbox (centos, amd64)	1m 34s
build-toolbox (fedora, amd64)	43s
build-toolbox (opensuse, amd64)	54s
test-server (default, centos, amd64)	15s
test-server (default, fedora, amd64)	24s
test-server (default, opensuse, amd64)	20s
test-server (nightly, centos, amd64)	15s
test-server (nightly, fedora, amd64)	17s
test-server (devbuilds, centos, amd64)	15s
test-ad-server-kubernetes (default, fedora, amd64)	1m 45s
test-ad-server-kubernetes (default, opensuse, amd64)	1m 43s
test-ad-server-kubernetes (nightly, centos, amd64)	1m 40s
test-ad-server-kubernetes (nightly, fedora, amd64)	1m 32s
push	0s
	2h 31m 36s

Provide feedback