Update doc/MARKOV. The examples are updated for version 1.8 output of
John (which incidentally simplifies the calculation part a lot as we
now get a proper p/s figure directly).
Merge branch 'bleeding-jumbo' into memdbg

* bleeding-jumbo:
  Update doc/MARKOV. The examples are updated for version 1.8 output of John (which incidentally simplifies the calculation part a lot as we now get a proper p/s figure directly).