add poster size

README.md

@@ -10,6 +10,7 @@ Keep technical jargon to a minimum, define domain-specific terms.
 
 ### Poster Design
 
+- Boards are 40 by 60 inches. Recommended print size is 36 by 48 inches.
 - Overview of RC system and QR codes for important links
     - "What computing resources are available at UAB?"
     - HPC Compute
@@ -34,4 +35,4 @@ Keep technical jargon to a minimum, define domain-specific terms.
 - Discussions and proofing with IT Comms.
 - Print out our flyers!
 - Bring mini-cards!
-- Wear UAB or UAB IT attire.
\ No newline at end of file
+- Wear UAB or UAB IT attire.