add contributors and touch up description file
diff --git a/R/posterdown.R b/R/posterdown.R
index de6fd42..62316a1 100644
--- a/R/posterdown.R
+++ b/R/posterdown.R
@@ -4,10 +4,14 @@
#'
#' @author Brent Thorne
#'
-#' @section poster_pdf:
-#' Creates an R Markdown template for a PDF poster document via LaTeX
#' @section poster_html:
#' Creates an R Markdown template for a PDF poster document via HTML
+#' @section poster_betterland:
+#' Creates an R Markdown template for a PDF poster document via HTML
+#' @section poster_betterport:
+#' Creates an R Markdown template for a PDF poster document via HTML
+#' @section posterdown_latex:
+#' Creates an R Markdown template for a PDF poster document via LaTeX
#'
#' @docType package
#' @name posterdown