ex/riocat in rio-0.3.3 vs ex/riocat in rio-0.3.4

@@ -4,15 +4,15 @@
 # example use:
 #   riocat < afile.txt >bfile.txt
 # 
 # explanation:
 #
-# rio('-')
-#   rio('-'): a rio that will be connected to stdin or stdout depending how it is used
+# rio(?-)
+#   rio(?-): a rio that will be connected to stdin or stdout depending how it is used
 #
-# rio('-')
-#   rio('-'): a rio that will be connected to stdin or stdout depending how it is used
+# rio(?-)
+#   rio(?-): a rio that will be connected to stdin or stdout depending how it is used
 #
 # <
 #   <: copy operator indicating rio on left is written to and the rio on the right is read from
 #
 rio(?-) < rio(?-)
@@ -20,10 +20,10 @@
 #
 # this could also be written
 # rio(?-) > rio(?-)
 #
 # this is similar but reads the entire file before writing
-#rio('-').print!( rio('-').slurp )
+#rio(?-).print!( rio(?-).slurp )
 
 
 
 #rio(?-).print!( rio(?-).slurp)