Update README.md

Signed-off-by: Vaibhav M N <[email protected]>

JWTManipulator9000/README.md

@@ -45,4 +45,40 @@ Configuration Parameters
   - payload_to_header: A list of payload keys whose values will be moved to headers.
   - header_to_payload: A list of header keys whose values will be moved to payloads.
 
+Example Use Case
 
+Imagine you're managing user authentication in a microservices environment, and you need to:
+
+  Add a custom claim to the payload to track user sessions.
+  Remove sensitive or irrelevant header information.
+  Transfer a specific claim from the payload to a header for an upstream service.
+
+Configuration for this case:
+```json
+{
+  "add_payload": [
+    ["session_id", "abc123"]
+  ],
+  "del_header": [
+    "debug_info"
+  ],
+  "payload_to_header": [
+    "user_role"
+  ]
+}
+```
+When applied:
+
+  - The filter will add a session_id claim to the payload with a value of abc123.
+  - It will remove the debug_info key from the headers.
+  - The user_role claim from the payload will be moved to the headers.
+
+Integration with Meshery
+
+To integrate JWTManipulator9000 into your Meshery configuration:
+
+   - Add the filter as part of your WASM filter chain.
+   - Provide the desired configuration JSON through Meshery's UI or API.
+   - Deploy the filter and observe how it modifies JWT tokens based on your specifications.
+
+For more details about configuring WASM filters with Meshery, visit the official ![Meshery documentation](https://github.com/meshery/.github/blob/master/profile/README.md)