message: Update README.md
  Add information about freebayes-parallel script requirements
diff: @@ -106,6 +106,8 @@ accomplished via
  sudo make install
  +Note that the freebayes-parallel script and the programs on which it depends are
  +not installed by this command.
  ## Usage
  @@ -179,7 +181,7 @@ Note that any of the above examples can be made parallel by using the
  scripts/freebayes-parallel script. If you find freebayes to be slow, you
  should probably be running it in parallel using this script to run on a single
  host, or generating a series of scripts, one per region, and run them on a
  -cluster.
  +cluster. Be aware that the freebayes-parallel script contains calls to other programs using relative paths from the scripts subdirectory; the easiest way to ensure a successful run is to invoke the freebayes-parallel script from within the scripts subdirectory.
  ## Calling variants: from fastq to VCF
  