Readme: fix build badge style

README.md

@@ -4,7 +4,7 @@ Tool for generating entities for [Nextras\ORM](https://github.com/nextras/orm).
 
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-[![Build Status](https://travis-ci.org/contributte/nextras-orm-generator.svg?branch=master)](https://travis-ci.org/contributte/nextras-orm-generator)
+[![Build Status](https://img.shields.io/travis/contributte/nextras-orm-generator.svg?style=flat-square)](https://travis-ci.org/contributte/nextras-orm-generator)
 [![Code coverage](https://img.shields.io/coveralls/minetro/normgen.svg?style=flat-square)](https://coveralls.io/r/minetro/normgen)
 [![Downloads this Month](https://img.shields.io/packagist/dm/contributte/nextras-orm-generator.svg?style=flat-square)](https://packagist.org/packages/contributte/nextras-orm-generator)
 [![Latest stable](https://img.shields.io/packagist/v/contributte/nextras-orm-generator.svg?style=flat-square)](https://packagist.org/packages/contributte/nextras-orm-generator)
@@ -59,4 +59,4 @@ This little tool can generate:
 
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-Thank you for testing, reporting and contributing.
+Thank you for testing, reporting and contributing.