File psl-1983/3-1/doc/nmode/nm-mark.topic artifact 247b8c335f part of check-in 255e9d69e6

.silent_index {mark} idx 10-1
.silent_index {Region} idx 10-1
.silent_index {words} idx 10-2
.silent_index {lists} idx 10-2
.silent_index {paragraphs} idx 10-2
.silent_index {Defuns} idx 10-2
.silent_index {pages} idx 10-2