Doc fixes (#9184)

* Remove unit from value

* Create doc-fixes.yam

Author: Nadine2016

changelog/v1.17.0-beta9/doc-fixes.yam

@@ -0,0 +1,6 @@
+changelog:
+- type: NON_USER_FACING  
+  description: >- 
+    Removes unit from value in advanced config.
+    skipCI-kube-tests:true
+  resolvesIssue: false

docs/content/installation/advanced_configuration/multi-gw-deployment.md

@@ -88,7 +88,7 @@ gloo:
                 name: https
                 targetPort: 8443
             type: LoadBalancer
-      tcpKeepaliveTimeSeconds: 5s # send keep-alive probes after 5s to keep connection up
+      tcpKeepaliveTimeSeconds: 5 # send keep-alive probes after 5s to keep connection up
       gatewaySettings:
         customHttpsGateway: # using the default HTTPS Gateway
           virtualServiceSelector:
@@ -102,7 +102,7 @@ gloo:
         httpsPort: 443
         httpNodePort: 32080 # random port to be fixed in your private network
         type: NodePort
-      tcpKeepaliveTimeSeconds: 5s # send keep-alive probes after 5s to keep connection up
+      tcpKeepaliveTimeSeconds: 5 # send keep-alive probes after 5s to keep connection up
       gatewaySettings:
         customHttpGateway: # using the default HTTP Gateway
           virtualServiceSelector: