Repository navigation

docs(record): three vendors measured at current versions, and Android… #1856

Job	Run time
integration: mcpp builds & runs xlings	9m 52s
toolchain: musl + llvm	10m 21s
examples: the curriculum builds	10m 15s
toolchain: gcc (cold self-host)	10m 20s
build + unit tests (linux x86_64, self-host)	16m 24s
	57m 12s