message: Update README_windows.txt
diff: @@ -25,6 +25,6 @@ However, it downloads and stores the entire history of Peercoin transactions;
  depending on the speed of your computer and network connection, the synchronization
  process can take anywhere from a few hours to a day or more.
  -See the bitcoin wiki at:
  - https://en.bitcoin.it/wiki/Main_Page
  +See the peercoin documentation at:
  + https://docs.peercoin.net/
  for more help and information.
  