Bug 1566293 Update HAProxy Router Version

Author: bmcelvee

architecture/topics/haproxy_template_router.adoc

@@ -7,7 +7,7 @@ The template router has two components:
 
 [NOTE]
 ====
-The link:https://cbonte.github.io/haproxy-dconv/1.5/configuration.html[HAProxy router] uses version 1.5.18.
+The link:https://cbonte.github.io/haproxy-dconv/1.8/configuration.html[HAProxy router] uses version 1.8.1.
 ====
 
 The controller and HAProxy are housed inside a pod, which is managed by a deployment configuration. The process of setting up the router is automated