updated readme

Author: devsylva

README.md

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 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.
 
 The ultimate goal of a task management application is to empower users to manage their tasks effectively, reduce stress, and enhance their overall productivity and organization.
 
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 # Tech Stack
 - Language: Python 3.11.3
 - Framework: Django 4.0+