[PATCH v2] Documentation: spi: Added a valid hyperlink

[coolrrsh@gmail.com]

From: Rajeshwar R Shinde <coolrrsh@gmail.com>

The hyperlink to datasheet in website are subject to change.
Created stable hyperlinks to view datasheets.

Signed-off-by: Rajeshwar R Shinde <coolrrsh@gmail.com>

---
v1->v2
changed the commit message

---
 Documentation/spi/spi-lm70llp.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/spi/spi-lm70llp.rst b/Documentation/spi/spi-lm70llp.rst
index 0144e12d9..f6a416468 100644
--- a/Documentation/spi/spi-lm70llp.rst
+++ b/Documentation/spi/spi-lm70llp.rst
@@ -6,7 +6,7 @@ Supported board/chip:
 
   * National Semiconductor LM70 LLP evaluation board
 
-    Datasheet: http://www.national.com/pf/LM/LM70.html
+    Datasheet: https://nbviewer.org/github/spidocs/spi-lm70llp/blob/main/LM70-LLP.pdf
 
 Author:
         Kaiwan N Billimoria <kaiwan@designergraphix.com>
@@ -28,7 +28,7 @@ Hardware Interfacing
 The schematic for this particular board (the LM70EVAL-LLP) is
 available (on page 4) here:
 
-  http://www.national.com/appinfo/tempsensors/files/LM70LLPEVALmanual.pdf
+  https://nbviewer.org/github/spidocs/spi-lm70llp/blob/main/LM70-LLP_schematic.pdf
 
 The hardware interfacing on the LM70 LLP eval board is as follows:
 
-- 
2.25.1