Update Sysdig link

Page did not mention Prometheus; I found one that did.

Signed-off-by: Bryan Boreham <[email protected]>

Author: bboreham

content/support-training.html

@@ -164,7 +164,7 @@ <h2>Commercial support</h2>
 
           <div class="col-md-3 col-sm-6 doc-content tc-col">
 
-              <a href="https://sysdig.com/" class="btn btn-training btn-default btn-large" target="_blank">
+              <a href="https://sysdig.com/solutions/prometheus-monitoring/" class="btn btn-training btn-default btn-large" target="_blank">
                 <img src="../assets/commercial-support-logos/sysdig.svg" alt="Sysdig">
               </a>
           </div>