Added Codacy badge

Author: brandonferens

README.md

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 [![Latest Version on Packagist](https://img.shields.io/packagist/v/kirschbaum-development/nova-inline-relationship.svg)](https://packagist.org/packages/kirschbaum-development/nova-inline-relationship)
 [![Total Downloads](https://img.shields.io/packagist/dt/kirschbaum-development/nova-inline-relationship.svg)](https://packagist.org/packages/kirschbaum-development/nova-inline-relationship)
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 Nova Inline Relationship allows you to manage (add/edit/update/delete/reorder) an object's relationships directly from the parent object's create/edit screens. By presenting relationships as inline properties you can provide content editors with a streamlined and efficient workflow for managing complex data.