Update README.md

Author: oliviertassinari

README.md

@@ -1,12 +1,12 @@
-## Babel plugin for removing React properties
+# Babel plugin for removing React properties
 
 [![Build Status](https://travis-ci.org/oliviertassinari/babel-plugin-react-remove-properties.svg?branch=master)](https://travis-ci.org/oliviertassinari/babel-plugin-react-remove-properties)
 [![npm version](https://img.shields.io/npm/v/babel-plugin-react-remove-properties.svg?style=flat-square)](https://www.npmjs.com/package/babel-plugin-react-remove-properties)
 [![npm downloads](https://img.shields.io/npm/dm/babel-plugin-react-remove-properties.svg?style=flat-square)](https://www.npmjs.com/package/babel-plugin-react-remove-properties)
 
 This is useful when using selectors like data-test to run selenium test. Those properties are useless when running the code in production. You can save bandwidth by removing them.
 
-### Example
+## Example
 
 **In**
 ```js
@@ -34,13 +34,13 @@ const Foo = React.createClass({
 });
 ```
 
-### Installation
+## Installation
 
 ```sh
 $ npm install --save-dev babel-plugin-react-remove-properties
 ```
 
-### Usage
+## Usage
 
 #### Via `.babelrc` (Recommended)
 
@@ -70,6 +70,6 @@ require("babel-core").transform("code", {
 });
 ```
 
-## License
+# License
 
 MIT