doc: change readme

Author: dorianneto

README.md

@@ -1,13 +1,9 @@
 # 🎛️ Feature Flag for Go
 
-<div style="text-align: center">
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 [![Go Report Card](https://goreportcard.com/badge/github.com/dorianneto/ff4go)](https://goreportcard.com/report/github.com/dorianneto/ff4go)
 ![GitHub go.mod Go version](https://img.shields.io/github/go-mod/go-version/dorianneto/ff4go)
 ![GitHub License](https://img.shields.io/github/license/dorianneto/ff4go)
 
-</div>
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 > Thank you for using ff4go! Feel free to report any [issue of improvement](https://github.com/dorianneto/ff4go/issues) 🙏
 
 ## Table of contents