Minor textual cleanups, no content additions.
Merged
requested to merge b.reuschling/element-docs:b.reuschling-h-da-main-patch-72880 into h-da-main
Remove some extra commas, English uses less than German. In one instance, shorten a "In order to" to a simple "To" (weasel word). In another instance, change "people" into "participants" as it is more fitting in that case.