Fixed help feature for discrete materials. Also added help links for … #666

Job	Run time
call_workflow / Start self-hosted EC2 runner	2m 19s
call_workflow / Clone and build	3m 7s
call_workflow / Stop self-hosted EC2 runner	1m 1s
call_workflow / Upload artifacts to repo	35s
call_workflow / Publish to S3	17s
call_workflow / Run test suite	0s
	7m 19s

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