fix protocol

Signed-off-by: Pranav Singh <pranavsingh02@hotmail.com>

Author: theBeginner86

content/en/cloud/reference/_index.md

@@ -20,17 +20,21 @@ To authenticate with the API, pass the token as a bearer token in the `Authoriza
 
 ```bash
 
-curl protocol://<Layer5-cloud-hostname>/<API> \
+curl <protocol>://<Layer5-cloud-hostname>/<API> \
 -H "Authorization: Bearer <token>"
 
 ```
 
 {{< alert title="Note" >}}
+
+Replace `<protocol>` with `http` or `https` based on your Layer5 Cloud instance, if its on-prem or exposed on web.
+
 Replace `<Layer5-cloud-hostname>` with the hostname or IP address of your hosted Layer5 Cloud instance. For example, [`https://cloud.layer5.io`](https://cloud.layer5.io).
 
 Replace `<API>` with the API endpoint you want to access. For example, [`/api/identity/users/profile`](https://cloud.layer5.io/api/identity/users/profile).
 
 Replace `<token>` with the security token you generated.
+
 {{< /alert >}}
 
 ### API Endpoints