Example without basic auth added. Same changes in 2.14 done

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

linkerd.io/content/2.13/tasks/external-prometheus.md

@@ -140,13 +140,22 @@ on the Prometheus instance to power the dashboard and CLI.
 
 The `prometheusUrl` field gives you a single place through
 which all these components can be configured to an external Prometheus URL.
-This is allowed both through the CLI and Helm. If the external Prometheus is secured with basic auth, you can include the credentials in the URL as well.
+This is allowed both through the CLI and Helm.
+If the external Prometheus is secured with basic auth,
+you can include the credentials in the URL as well.
 
 ### CLI
 
 This can be done by passing a file with the above field to the `values` flag,
 which is available through `linkerd viz install` command.
 
+```yaml
+prometheusUrl: http://existing-prometheus.namespace:9090
+```
+
+If the external Prometheus is secured with basic auth, you can include the
+credentials in the URL as well.
+
 ```yaml
 prometheusUrl: http://username:[email protected]:9090
 ```

linkerd.io/content/2.14/tasks/external-prometheus.md

@@ -141,14 +141,23 @@ on the Prometheus instance to power the dashboard and CLI.
 The `prometheusUrl` field gives you a single place through
 which all these components can be configured to an external Prometheus URL.
 This is allowed both through the CLI and Helm.
+If the external Prometheus is secured with basic auth,
+you can include the credentials in the URL as well.
 
 ### CLI
 
 This can be done by passing a file with the above field to the `values` flag,
 which is available through `linkerd viz install` command.
 
 ```yaml
-prometheusUrl: existing-prometheus.xyz:9090
+prometheusUrl: http://existing-prometheus.namespace:9090
+```
+
+If the external Prometheus is secured with basic auth, you can include the
+credentials in the URL as well.
+
+```yaml
+prometheusUrl: http://username:[email protected]:9090
 ```
 
 Once applied, this configuration is not persistent across installs.