Update doc and part of the doc order

Signed-off-by: noobwei <[email protected]>

content/en/docs/userguide/install_waypoint.md

@@ -4,7 +4,7 @@ linktitle: Install Waypoint
 menu:
   docs:
     parent: user guide
-    weight: 3
+    weight: 4
 title: Install Waypoint
 toc: true
 type: docs

content/en/docs/userguide/metric.md

@@ -4,7 +4,7 @@ linktitle: Querying L4 Metrics from Prometheus
 menu:
   docs:
     parent: user guide
-    weight: 4
+    weight: 3
 title: Querying L4 Metrics from Prometheus
 toc: true
 type: docs

content/en/docs/userguide/try_fault_injection.md

@@ -18,22 +18,17 @@ type: docs
 
 2. Deploy bookinfo as sample application and sleep as curl client
 
-3. Install service granularity waypoint for reviews and ratings service
+3. Install service granularity waypoint for reviews service
 
+*The above steps could refer to [Install Waypoint | Kmesh](https://kmesh.net/en/docs/userguide/install_waypoint/#preparation)*
 
+4. And install waypoint for ratings service
 ```bash
-istioctl x waypoint apply -n default --name reviews-svc-waypoint
-kubectl label service reviews istio.io/use-waypoint=reviews-svc-waypoint
-kubectl annotate gateway reviews-svc-waypoint sidecar.istio.io/proxyImage=ghcr.io/kmesh-net/waypoint:latest
-
 istioctl x waypoint apply -n default --name ratings-svc-waypoint
 kubectl label service ratings istio.io/use-waypoint=ratings-svc-waypoint
 kubectl annotate gateway ratings-svc-waypoint sidecar.istio.io/proxyImage=ghcr.io/kmesh-net/waypoint:latest
 ```
-
-*The above steps could refer to [Install Waypoint | Kmesh](https://kmesh.net/en/docs/userguide/install_waypoint/#preparation)*
-
-4. Apply application version routing by running the following commands:
+5. Apply application version routing by running the following commands:
 
 ```bash
 kubectl apply -f https://raw.githubusercontent.com/istio/istio/release-1.21/samples/bookinfo/networking/virtual-service-all-v1.yaml