Add bytes methods documentation.
diff --git a/Doc/library/codecs.rst b/Doc/library/codecs.rst
index 7a035c2..aa6bc98 100644
--- a/Doc/library/codecs.rst
+++ b/Doc/library/codecs.rst
@@ -1117,6 +1117,8 @@
 byte string. The result of the "decoding" direction is listed as operand type in
 the table.
 
+.. XXX fix here, should be in above table
+
 +--------------------+---------+----------------+---------------------------+
 | Codec              | Aliases | Operand type   | Purpose                   |
 +====================+=========+================+===========================+