add posterdown_betterport

portrait template for better poster design has been added

- support for longer author list if needed, can specify various authors to be highlited in the begining of the list.

- better responsiveness to spacing when changinf poster size

-  may need to go back and ensure YAML options amon all templates are more standardized.
diff --git a/inst/CITATION b/inst/CITATION
index 7460ea8..d40697c 100644
--- a/inst/CITATION
+++ b/inst/CITATION
@@ -4,7 +4,7 @@
  vers <- paste("R package version", meta$Version)
 
  citEntry(entry="Manual",
-		  title = "posterdown: An R Package",
+		  title = "posterdown: An R Package Built to Generate Reproducible Conference Posters for the Academic and Professional World Were Powerpoint and Pages Just Wont Cut It",
 		  author = personList(as.person("W. Brent Thorne")),
 		  year = 2019,
 		  url = "https://github.com/brentthorne/posterdown",