Update MCL API documentation. #256

Job	Run time
build (linux-amd64)	1m 14s
build (linux-x86)	1m 6s
build (linux-i386)	1m 9s
build (windows-x64)	2m 25s
build (windows-x86)	2m 8s
runtimes (testscript)	1m 17s
tools	1m 41s
test_e2e	1m 4s
containers (modelc, linux-amd64)	31s
publish (linux-amd64)	10s
containers (modelc-x86, linux-x86)	42s
docker_push (simer)	57s
publish (linux-x86)	7s
containers (simbus-sa, linux-amd64)	35s
docker_push (testscript)	22s
publish (linux-i386)	5s
publish (windows-x64)	4s
publish (windows-x86)	5s
	15m 42s

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