Define parameter and update readme

Author: pcnoic

README.md

@@ -20,6 +20,12 @@ Registers an Amazon ECS task definition and deploys it to an ECS service.
 
 ## Usage
 
+The action supports the following inputs:
+
+* `task-definition` (required) - The path to the ECS task definition file (JSON format) to register.
+* `max-retries` (optional) - The maximum number of retry attempts for AWS API calls. The action uses exponential backoff with jitter for retries. Defaults to 3.
+* `service` (optional) - The name of the ECS service to update with the new task definition. If empty, the action will not attempt to update a service.
+
 ```yaml
     - name: Deploy to Amazon ECS
       uses: aws-actions/amazon-ecs-deploy-task-definition@v2

action.yml

@@ -88,6 +88,9 @@ inputs:
   propagate-tags:
     description: "Determines to propagate the tags from the 'SERVICE' to the task."
     required: false
+  max-retries:
+    description: 'The maximum number of retry attempts for AWS API calls. Defaults to 3.'
+    required: false
 outputs:
   task-definition-arn:
     description: 'The ARN of the registered ECS task definition.'