Update README: fix broken/outdated links (#393) #1967

Job	Run time
rsl-ui-checks	51s
formatting	1m 23s
api-docs	29s
linux (linux-amd64-avx2-release, linux-amd64)	3m 22s
linux (linux-amd64-noavx-release, linux-amd64-noavx)	3m 16s
linux (linux-x86-release, linux-x86)	3m 18s
linux (linux-arm-release, linux-arm, qemu-arm-static)	3m 38s
linux (linux-arm64-release, linux-arm64, qemu-aarch64-static)	3m 40s
linux (clang-tidy, true, true)	6m 52s
linux (linux-sanitizer, true)	1s
linux (linux-debug, true, valgrind --leak-check=full --error-exitcode=1)	7m 10s
macos (macos-x86_64, macos-x86_64-avx)	1h 9m 45s
macos (macos-x86_64-noavx2, macos-x86_64-noavx, On)	1h 13m 3s
macos (macos-arm64, macos-arm64)	1h 7m 58s
full-data-set-test	0s
docker	0s
	4h 4m 46s

Provide feedback