Comfirm to Standard Readme

Author: orleika

README.md

@@ -4,21 +4,39 @@
 [![Build Status](https://img.shields.io/travis/orleika/docker-nginx/master.svg?style=flat-square)](https://travis-ci.org/orleika/docker-nginx)
 [![nginx](http://img.shields.io/badge/nginx-v1.11.9-blue.svg?style=flat-square)](https://nginx.org/en/download.html)
 [![LibreSSL](http://img.shields.io/badge/LibreSSL-v2.5.1-blue.svg?style=flat-square)](https://www.libressl.org/)
+[![standard-readme compliant](https://img.shields.io/badge/standard--readme-OK-green.svg?style=flat-square)](https://github.com/RichardLitt/standard-readme)
 
 > nginx docker image
 
+Small-Secure-Fast nginx docker image.  
+Base image is alpine, which is a security-oriented, lightweight Linux distribution.  
+Most response headers are concealed, and DDoS mitigation is equipped.
+You should use secure headers included in `conf.d` for further safety considerations.  
+Additionally, nginx caching parameters are optimized.
+
 ## Table of Contents
 
+- [Install](#install)
 - [Usage](#usage)
+- [Contribute](#contribute)
 - [License](#license)
 
-## Usage
+## Install
 
 ```sh
 $ docker pull orleika/nginx
+```
+
+## Usage
+
+```sh
 $ docker run -d -p 80:80 orleika/nginx
 ```
 
+## Contribute
+
+PRs accepted.
+
 ## License
 
-This project is licensed under the MIT License - see the LICENSE file for details
+MIT © orleika