fix broken links

source/manual/how-tos/ipsec-s2s.rst

@@ -466,10 +466,6 @@ Sample configuration
 For test purposes we used two OPNsense boxes integrated into one unit and a
 cross-cable between the WAN ports.
 
-.. image:: images/OPN20322R_870px.png
-   :target: https://www.deciso.com/product-catalog/opn20322r/
-   :width: 100%
-
 To route traffic the WAN interfaces have been configured to use a /16 segment and
 they are each others default gateway. Other than that the sample is equal to this
 how-to.

source/setup.rst

@@ -6,7 +6,7 @@ Installation and setup
     :width: 600px
     :align: center
 
-When your device wasn't shipped with OPNsense® `pre-installed <https://www.deciso.com/product-catalog/>`__,
+When your device wasn't shipped with OPNsense® `pre-installed <https://shop.opnsense.com>`__,
 you can find how to install it yourself and which hardware platforms are supported in this chapter.