docs: Create README.md and add goreportcard badge to it (#85)

* Create README.md and add goreportcard badge to it

README.md

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+[![Go ReportCard](https://goreportcard.com/badge/github.com/drpaneas/romie)](https://goreportcard.com/report/github.com/drpaneas/romie)
+
+[Romie](https://github.com/drpaneas/romie/) is a golang project created by some
+friends in a way that is a professional environment (some would say overkill)
+with CI and CD systems. Its purpose is to teach us golang and to learn how we
+can set up CI/CD and other workflows. The purpose of the code will be a
+script/program that would allow you to download ROMs from various sites for
+[Retropie](https://retropie.org.uk/). We want to have fun learning and doing a
+fun project. See [here](https://github.com/drpaneas/romie/blob/master/README.md#contributors-)
+for the authors and contributors.