Improve see-also references for gateway api (#12459)

content/en/blog/2022/getting-started-gtwapi/index.md

@@ -152,7 +152,7 @@ $ kubectl wait -n sample-ingress --for=condition=ready gateway sample-gateway
 $ export INGRESS_HOST=$(kubectl get -n sample-ingress gateway sample-gateway -o jsonpath='{.status.addresses[*].value}')
 {{< /text >}}
 
-Then we can attach an [HTTPRoute](https://gateway-api.sigs.k8s.io/references/spec/#gateway.networking.k8s.io%2fv1beta1.HTTPRoute)
+Next, we attach an [HTTPRoute](https://gateway-api.sigs.k8s.io/references/spec/#gateway.networking.k8s.io%2fv1beta1.HTTPRoute)
 to the `sample-gateway` (i.e., using the `parentRefs` field) to expose and route traffic to the helloworld service:
 
 {{< text bash >}}

content/en/docs/setup/additional-setup/getting-started/index.md

@@ -6,7 +6,7 @@ aliases:
     - /docs/setup/kubernetes/getting-started/
     - /docs/setup/kubernetes/
     - /docs/setup/kubernetes/install/kubernetes/
-keywords: [getting-started, install, bookinfo, quick-start, kubernetes]
+keywords: [getting-started, install, bookinfo, quick-start, kubernetes, gateway-api]
 owner: istio/wg-environments-maintainers
 test: yes
 ---

content/en/docs/tasks/traffic-management/ingress/gateway-api/index.md

@@ -5,7 +5,7 @@ weight: 50
 aliases:
     - /docs/tasks/traffic-management/ingress/service-apis/
     - /latest/docs/tasks/traffic-management/ingress/service-apis/
-keywords: [traffic-management,ingress]
+keywords: [traffic-management,ingress, gateway-api]
 owner: istio/wg-networking-maintainers
 test: yes
 ---