fix: fix indentation of codeblock in collecting metrics docs

Author: linkvt

docs/snippets/collecting-metrics.md

@@ -25,14 +25,14 @@ You can also set up the OpenTelemetry Collector to receive metrics from Knative
 
 1. Install the [Prometheus Stack](https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack) by using [Helm](https://helm.sh/docs/intro/using_helm/):
 
-       ```bash
-       helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
-       helm repo update
-       helm install knative prometheus-community/kube-prometheus-stack \
-          --create-namespace \
-          --namespace observability \
-          -f https://raw.githubusercontent.com/knative-extensions/monitoring/main/promstack-values.yaml
-
+    ```bash
+    helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
+    helm repo update
+    helm install knative prometheus-community/kube-prometheus-stack \
+      --create-namespace \
+      --namespace observability \
+      -f https://raw.githubusercontent.com/knative-extensions/monitoring/main/promstack-values.yaml
+    ```
 
 ### Access the Prometheus instance locally
 

docs/versioned/eventing/observability/metrics/collecting-metrics.md

@@ -11,21 +11,21 @@ function: how-to
 
 1. To enable prometheus metrics collection you will want to update `config-observability` ConfigMap and set the `metrics-protocol` to `prometheus`.
 
-```yaml
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: config-observability
-  namespace: knative-eventing
-data:
-    # metrics-protocol field specifies the protocol used when exporting metrics
-    # It supports either 'none' (the default), 'prometheus', 'http/protobuf' (OTLP HTTP), 'grpc' (OTLP gRPC)
-    metrics-protocol: prometheus
-
-    tracing-protocol:      http/protobuf
-    tracing-endpoint:      http://jaeger-collector.observability.svc:4318/v1/traces
-    tracing-sampling-rate: "1"
-```
+    ```yaml
+    apiVersion: v1
+    kind: ConfigMap
+    metadata:
+      name: config-observability
+      namespace: knative-eventing
+    data:
+        # metrics-protocol field specifies the protocol used when exporting metrics
+        # It supports either 'none' (the default), 'prometheus', 'http/protobuf' (OTLP HTTP), 'grpc' (OTLP gRPC)
+        metrics-protocol: prometheus
+
+        tracing-protocol:      http/protobuf
+        tracing-endpoint:      http://jaeger-collector.observability.svc:4318/v1/traces
+        tracing-sampling-rate: "1"
+    ```
 
 ### Apply the Eventing Service/Pod Monitors
 

docs/versioned/serving/observability/metrics/collecting-metrics.md

@@ -13,26 +13,26 @@ function: how-to
 1. To enable prometheus metrics collection you will want to update `config-observability` ConfigMap and set the `metrics-protocol` to `prometheus`. For request-metrics we recommend setting up pushing metrics to prometheus. This requires enabling the Prometheus OLTP receiver. This is already configured in our monitoring example.
 
 
-```yaml
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: config-observability
-  namespace: knative-serving
-data:
-    # metrics-protocol field specifies the protocol used when exporting metrics
-    # It supports either 'none' (the default), 'prometheus', 'http/protobuf' (OTLP HTTP), 'grpc' (OTLP gRPC)
-    metrics-protocol: prometheus
-
-    # request-metrics-protocol
-    request-metrics-protocol: http/protobuf
-    request-metrics-endpoint: http://knative-kube-prometheus-st-prometheus.observability.svc:9090/api/v1/otlp/v1/metrics
-
-    tracing-protocol:      http/protobuf
-    tracing-endpoint:      http://jaeger-collector.observability.svc:4318/v1/traces
-    tracing-sampling-rate: "1"
-
-```
+    ```yaml
+    apiVersion: v1
+    kind: ConfigMap
+    metadata:
+      name: config-observability
+      namespace: knative-serving
+    data:
+        # metrics-protocol field specifies the protocol used when exporting metrics
+        # It supports either 'none' (the default), 'prometheus', 'http/protobuf' (OTLP HTTP), 'grpc' (OTLP gRPC)
+        metrics-protocol: prometheus
+
+        # request-metrics-protocol
+        request-metrics-protocol: http/protobuf
+        request-metrics-endpoint: http://knative-kube-prometheus-st-prometheus.observability.svc:9090/api/v1/otlp/v1/metrics
+
+        tracing-protocol:      http/protobuf
+        tracing-endpoint:      http://jaeger-collector.observability.svc:4318/v1/traces
+        tracing-sampling-rate: "1"
+
+    ```
 
 1. Apply the ServiceMonitors/PodMonitors to collect metrics from Knative Serving Control Plane.