posterdown_memoir phased to posterdown_pdf

Fully-ish customised sizing of the poster and colours :partly_sunny:
diff --git a/.Rproj.user/441ADA46/sources/prop/4B35A6C8 b/.Rproj.user/441ADA46/sources/prop/4B35A6C8
index b818b7b..14fb6c5 100644
--- a/.Rproj.user/441ADA46/sources/prop/4B35A6C8
+++ b/.Rproj.user/441ADA46/sources/prop/4B35A6C8
@@ -1,4 +1,4 @@
 {
-    "cursorPosition" : "22,37",
-    "scrollLine" : "9"
+    "cursorPosition" : "27,34",
+    "scrollLine" : "19"
 }
\ No newline at end of file