Complete user task using rest-api call using springboot

[aravindhrs]

@anji you can follow @Niall video tutorial

https://docs.camunda.org/manual/latest/reference/rest/task/post-complete/#example

https://blog.camunda.com/post/2015/08/start-and-complete-process-with-rest-api/

Use Camunda as an easy-to-use REST-based orchestration and workflow engine...