Revise docs for working with CRUD secrets

docs/api-reference/overview/examples/delete-secrets.mdx

@@ -7,24 +7,32 @@ In this example, we demonstrate how to delete secrets
 Prerequisites:
 
 - Set up and add envars to [Infisical Cloud](https://app.infisical.com)
+- Create either an [API Key](/api-reference/overview/authentication) or [Infisical Token](../../../getting-started/dashboard/token) for your project and environment.
 - Grasp a basic understanding of the system and its underlying cryptography [here](/api-reference/overview/introduction).
 
 ## Example
 
+<Tabs>
+<Tab title="Javascript">
+</Tab>
+</Tabs>
 ```js
+const axios = require('axios'); 
+const BASE_URL = 'https://app.infisical.com';
+
 const deleteSecrets = async () => {
-  const API_KEY = "your_api_key";
-  const SECRET_ID = "ID"; // ID of secret to delete
+  const serviceToken = 'your_service_token';
+  const secretId = 'id_of_secret_to_delete';
 
   // 6. Send ID(s) of secret(s) to delete to the Infisical API
   await axios.delete(
-    `https://api.infisical.com/api/v2/secrets`,
+    `${BASE_URL}/api/v2/secrets`,
     {
-      secretIds: SECRET_ID,
+      secretIds: [secretId],
     },
     {
       headers: {
-        "X-API-KEY": API_KEY,
+        Authorization: `Bearer ${serviceToken}`
       },
     }
   );
@@ -32,3 +40,8 @@ const deleteSecrets = async () => {
 
 deleteSecrets();
 ```
+
+<Info>
+  If using an `API_KEY` to authenticate with the Infisical API, then you should include it in the `X_API_KEY` header.
+</Info>
+