small improvement on table headers

R/compare_map_reactions.R

@@ -14,7 +14,7 @@
 #' @param drop_empty (`logical`) (optional) should the non-matching entries be dropped
 #'
 #' @return (`data.frame`) a data.frame object listing map_a and map_b diagram and reaction identifiers,
-#' similarity and count values
+#' similarity and number of elements in reactions
 #' @importFrom magrittr %>%
 #' @importFrom rlang .data
 #'