fix typo (woild => would)

README

@@ -12,7 +12,7 @@ and here are the latest options:
  --enable-debug	Enable debugging support or not [Default: Disabled]
			It will cause PCManX to dump more detail informations.

  --prefix=DIR		Specify the prefix directory to DIR. Usually, we woild
  --prefix=DIR		Specify the prefix directory to DIR. Usually, we would
			like to use /usr as the manner defined in LSB (Linux
			Standard Base).
  --disable-docklet	Disable the docklet / system tray support.