Update README.md

Author: mertakdut

README.md

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 [![Build Status](https://travis-ci.org/mertakdut/Spring-Boot-Sample-Project.svg?branch=master)](https://travis-ci.org/mertakdut/Spring-Boot-Sample-Project)
 [![Coverage Status](https://coveralls.io/repos/github/mertakdut/Spring-Boot-Sample-Project/badge.svg?branch=master)](https://coveralls.io/github/mertakdut/Spring-Boot-Sample-Project?branch=master)
 
+This is a sample Java / Maven / Spring Boot application which provides RESTful services. It can be used as a starter project. Currently it is designed to work as [this project](https://github.com/mertakdut/React-Sample-Project)'s backend.
+
 ## Installation Instructions
   You can import the project as a maven application to your favorite IDE. I made my tests by using eclipse jee-2018-12.