Improved documentation for backward_linkages()

Author: antaldaniel

R/backward_linkages.R

@@ -5,11 +5,11 @@
 #' it will increase the total (intermediate) demand on all other sectors, which is measured
 #' by backward linkages. 
 #' 
-#' @details Backward linkages are defined as the column sum of the Leontief inverse, in line with 
-#' the Eurostat Manual of Supply, Use and
+#' @details Backward linkages are defined as the column sum of the Leontief inverse, 
+#' in line with  the Eurostat Manual of Supply, Use and
 #' Input-Output Tables (see p506-507.) and the 
 #' Handbook on Supply and Use Tables and Input-Output Tables with Extensions and Applications of 
-#' the United Nations (see p636,)
+#' the United Nations (see p636.)
 #' @param Im A Leontief inverse matrix created by the
 #' \code{\link{leontief_inverse_create}} function. 
 #' @return The vector of industry (product) backward linkages in a wide