Document advances-pages-per-row.

zathurarc.5.rst

@@ -469,6 +469,13 @@ Possible options are "best-fit" and "width".
 * Value-type: String
 * Default value: best-fit
 
+advance-pages-per-row
+^^^^^^^^^^^^^^^^^^^^^
+Defines if the number of pages per row should be honored when advancing a page.
+
+* Value-type: Boolean
+* Default value: false
+
 highlight-color
 ^^^^^^^^^^^^^^^
 Defines the color that is used for highlighting parts of the document (e.g.: