QStandardPath: fix typo

Pick-to: 6.3 6.2
Change-Id: I12837ce614ea91a8a72191092dc8c835f74107cc
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>

src/corelib/io/qstandardpaths.cpp

@@ -215,7 +215,7 @@ QT_BEGIN_NAMESPACE
          \li "C:/Users/<USER>/AppData/Local", "C:/ProgramData"
     \row \li DownloadLocation
          \li "~/Downloads"
-         \li "C:/Users/<USER>/Documents"
+         \li "C:/Users/<USER>/Downloads"
     \row \li GenericCacheLocation
          \li "~/Library/Caches", "/Library/Caches"
          \li "C:/Users/<USER>/AppData/Local/cache"