update readme file

Author: devsylva

README.md

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 # API DOCUMENTATION
 ![download](https://github.com/devsylva/TaskFlow-API/assets/67736638/08e112b2-6fb4-4f54-9d05-e9c003ebd5b7)
+[Postman Collection](https://www.postman.com/universal-firefly-869928/workspace/taskflow-api)
 
 Welcome to the documentation for Dispatch Hub! This guide provides developers with the necessary information to interact with our API and integrate it into their applications.
 
-[Postman Collection](https://www.postman.com/universal-firefly-869928/workspace/taskflow-api)
 
 # Overview  
 TaskFlow API is a Task Management Application RESTful API. The objectives of this application is to provide users with tools and features that help them efficiently manage their tasks, improve productivity, and stay organized.