add a note about T=1 cards and readers in TPDU mode

git-svn-id: svn:https://anonscm.debian.org/svn/pcsclite/trunk/Drivers/ccid@465 0ce88b0d-b2fd-0310-8134-9614164e65ea

README

@@ -45,6 +45,14 @@ Known problems:
 ===============
 
 All platforms
+ T=1 and TPDU
+ """"""""""""
+ I do not yet included support of T=1 cards when the reader is in
+ TPDU mode.
+ If you have a T=1 card I recommand you to use a reader working in
+ APDU mode. T=1 and TPDU will be supported in a future version of
+ the driver.
+
  readers enumeration
  """""""""""""""""""
  You may have wrong reader identification if you connect two or