Note: the @acronym{NNTP} back end stores marks in marks files
(@pxref{NNTP marks}). This feature makes it easy to share marks between
several Gnus installations, but may slow down things a bit when fetching
-new articles. @xref{NNTP marks} for more information.
+new articles. @xref{NNTP marks}, for more information.
@node The First Time