Adds missing descriptions for clipboard and folder (#11051)

code/modules/paperwork/clipboard.dm

@@ -1,5 +1,7 @@
 /obj/item/clipboard
 	name = "clipboard"
+	desc = "When other writing surfaces are unavailable."
+	desc_info = "You can store a pen in this."
 	icon = 'icons/obj/bureaucracy.dmi'
 	icon_state = "clipboard"
 	item_state = "clipboard"

code/modules/paperwork/folders.dm

@@ -1,6 +1,6 @@
 /obj/item/folder
 	name = "folder"
-	desc = "A folder."
+	desc = "Holds loose sheets of paper and is a bureaucrat's best friend."
 	icon = 'icons/obj/bureaucracy.dmi'
 	icon_state = "folder"
 	w_class = ITEMSIZE_SMALL