Updating help link for "fake file" drag&drop download mode

Source commit: e26d778587a286a9e18fef280cf1506bd3a02435

source/resource/HelpWin.h

@@ -62,6 +62,6 @@
 #define HELP_LOGIN_AUTHORIZED_KEYS   "guide_public_key"
 #define HELP_READONLY_INI_FILE       "config#ini_readonly"
 #define HELP_SESSION_RENAME          "task_connection"
-#define HELP_DD_TARGET_UNKNOWN       "dragdrop_download"
+#define HELP_DD_TARGET_UNKNOWN       "ui_pref_dragdrop#fake_file"
 
 #endif // TextsWin