User guide documentation updates #755

Job	Run time
linux-64-py3.10	5m 7s
macOS	11m 44s
prototype_mtc	42m 22s
win-64	10m 36s
estimation_mode_test	1m 20s
prototype_arc	48m 5s
prototype_mtc	42m 45s
placeholder_psrc	35m 28s
prototype_psrc_in_development	3m 58s
random_seed_generation_test	2m 26s
prototype_marin	1m 30s
prototype_mtc_extended	1h 57m 24s
placeholder_sandag	2h 1m 25s
develop-docbuild	0s
prototype_sandag_xborder	4m 14s
production_semcog	5m 32s
prototype_mwcog	44m 45s
placeholder_multiple_zone	7m 59s
	8h 26m 40s

Provide feedback