Modified notes from 'slist-in-meta' to 'bundle_return_value_index-in-reports' + created new bug reports for issues

Moved some notes closer to the top of node sections, modified some of the notes' content, and resolved some editing notes from previous rounds of content modification (generating bug reports https://cfengine.com/dev/issues/2558 and https://cfengine.com/dev/issues/2557 in the process). Started at 'slist-in-meta' and stopped before node 'bundle_return_value_index-in-reports' in the master file of original content, which is then parsed to produce the markdown files included in this commit.