message: Update python howto prerequisites to include  64-bit python
diff: @@ -9,6 +9,7 @@ Indy-SDK Developer Walkthrough #1, Python Edition
  Setup your workstation with an indy development virtual machine (VM). See [prerequisites](../../prerequisites.md).
  +Ensure you have the 64-bit version of Python installed, as the 32-bit version may have problems loading the Indy .dll files.
  ## Steps
  