Documentation/networking: Update Intel Wired LAN docs

- Update the Intel Wired LAN documentation with the latest
  URL for ethtool.

- replace "Ethtool" with "ethtool"

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Emil Tantilov <emil.s.tantilov@intel.com>
diff --git a/Documentation/networking/e1000.txt b/Documentation/networking/e1000.txt
index 6cb13e9..71ca958 100644
--- a/Documentation/networking/e1000.txt
+++ b/Documentation/networking/e1000.txt
@@ -431,15 +431,15 @@
   Ethtool
   -------
   The driver utilizes the ethtool interface for driver configuration and
-  diagnostics, as well as displaying statistical information.  Ethtool
+  diagnostics, as well as displaying statistical information.  The ethtool
   version 1.6 or later is required for this functionality.
 
   The latest release of ethtool can be found from
-  http://sourceforge.net/projects/gkernel.
+  http://ftp.kernel.org/pub/software/network/ethtool/
 
   Enabling Wake on LAN* (WoL)
   ---------------------------
-  WoL is configured through the Ethtool* utility.
+  WoL is configured through the ethtool* utility.
 
   WoL will be enabled on the system during the next shut down or reboot.
   For this driver version, in order to enable WoL, the e1000 driver must be