docs: fix badges and headers in readme

Author: rolandjitsu

README.md

@@ -1,20 +1,17 @@
 # attr-accept
-JavaScript implementation of the "accept" attribute for HTML5 `<input type="file">`
+> JavaScript implementation of the "accept" attribute for HTML5 `<input type="file">`
 
-![](https://github.com/react-dropzone/attr-accept/workflows/Test/badge.svg)
-[![npm version](https://badge.fury.io/js/attr-accept.svg)](https://badge.fury.io/js/attr-accept)
-[![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg)](https://github.com/semantic-release/semantic-release)
+[![npm](https://img.shields.io/npm/v/attr-accept.svg?style=flat-square)](https://www.npmjs.com/package/attr-accept)
+![Tests](https://img.shields.io/github/actions/workflow/status/react-dropzone/attr-accept/test.yml?branch=master&style=flat-square&label=tests)
 
 See https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/file#attr-accept for more information.
 
-Installation
-=====
+## Installation
 ```sh
 npm install --save attr-accept
 ```
 
-Usage
-=====
+## Usage
 ```javascript
 var accept = require('attr-accept');
 accept({