Update README.md #2716

Job	Run time
unit-tests	4s
cabal-doExactConfig	9s
cabal	9s
runghc	7s
build-extra-hackages	5s
check-materialization-concurrency	19s
check-path-support	5s
closure-size	7s
docs	18s
haskell-nix-roots-do-not-require-IFDs	12s
hix	27s
hydra-ifdLevel-0-and-1	2m 28s
hydra-ifdLevel-2	2m 36s
hydra-ifdLevel-3	16m 18s
hydra-without-remote-builders-ghc8107	33s
hydra-without-remote-builders-ghc9101	27s
maintainer-scripts	7s
multi-target	34s
plan-extra-hackages	5s
shellFor-hoogle	7s
shellFor-multiple-package	10s
shellFor-not-depends	12s
shellFor-single-package	14s
tests-benchmarks	7s
update-docs	6s
hix-cabal	7s
nix-build	26s
nix-tools	15s
	26m 54s

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