Add documentation for optional param for get workflow step API

_automating-configurations/api/get-workflow-steps.md

@@ -7,7 +7,7 @@ nav_order: 50
 
 # Get workflow steps
 
-OpenSearch validates workflows by using the validation template that lists the required inputs, generated outputs, and required plugins for all steps. For example, for the `register_remote_model` step, the validation template appears as follows:
+This API returns a list of workflow steps, including their required inputs, outputs, default timeout values, and required plugins. For example, for the `register_remote_model` step, the Get Workflow Steps API returns the following information:
 
 ```json
 {
@@ -25,36 +25,52 @@ OpenSearch validates workflows by using the validation template that lists the r
     ]
   }
 }
-```
-
-The Get Workflow Steps API retrieves this file.   
+``` 
 
 ## Path and HTTP methods
 
 ```json
 GET /_plugins/_flow_framework/workflow/_steps
+GET /_plugins/_flow_framework/workflow/_step?workflow_step=<step_name>
 ``` 
 
+## Query parameters
+
+The following table lists the available query parameters. All query parameters are optional.
+
+| Parameter | Data type | Description |
+| :--- | :--- | :--- |
+| `workflow_step` | String | The name of the step to retrieve. Specify multiple step names as a comma-separated list. For example, `create_connector,delete_model,deploy_model`. |
+
 #### Example request
 
+To fetch all workflow steps, use the following request:
+
 ```json
 GET /_plugins/_flow_framework/workflow/_steps
+``` 
+{% include copy-curl.html %}
+
+To fetch specific workflow steps, pass the step names to the request as a query parameter:
+
+```json
+GET /_plugins/_flow_framework/workflow/_step?workflow_step=create_connector,delete_model,deploy_model
 ```
 {% include copy-curl.html %}
 
 
 #### Example response
 
-OpenSearch responds with the validation template containing the steps. The order of fields in the returned steps may not exactly match the original JSON but will function identically.
+OpenSearch responds with the workflow steps. The order of fields in the returned steps may not exactly match the original JSON but will function identically.
 
 To retrieve the template in YAML format, specify `Content-Type: application/yaml` in the request header:
 
 ```bash
-curl -XGET "http://localhost:9200/_plugins/_flow_framework/workflow/8xL8bowB8y25Tqfenm50" -H 'Content-Type: application/yaml'
+curl -XGET "http://localhost:9200/_plugins/_flow_framework/workflow/_steps" -H 'Content-Type: application/yaml'
 ```
 
 To retrieve the template in JSON format, specify `Content-Type: application/json` in the request header:
 
 ```bash
-curl -XGET "http://localhost:9200/_plugins/_flow_framework/workflow/8xL8bowB8y25Tqfenm50" -H 'Content-Type: application/json'
+curl -XGET "http://localhost:9200/_plugins/_flow_framework/workflow/_steps" -H 'Content-Type: application/json'
 ```