Doc update. #261

Job	Run time
build (linux-amd64)	1m 25s
build (linux-x86)	1m 11s
build (linux-i386)	1m 18s
build (windows-x64)	2m 28s
build (windows-x86)	1m 55s
tools	1m 40s
runtimes (testscript)	1m 14s
test_e2e	1m 11s
containers (modelc, linux-amd64)	38s
publish (linux-amd64)	9s
containers (modelc-x86, linux-x86)	32s
docker_push (simer)	27s
publish (linux-x86)	5s
containers (simbus-sa, linux-amd64)	22s
docker_push (testscript)	29s
publish (linux-i386)	4s
publish (windows-x64)	10s
publish (windows-x86)	9s
	15m 27s

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