docs: use standard badges

README.md

@@ -1,14 +1,12 @@
-
 # fresh
 
-[![NPM version][npm-image]][npm-url]
-[![Build status][travis-image]][travis-url]
-[![Test coverage][coveralls-image]][coveralls-url]
-[![Dependency Status][david-image]][david-url]
-[![License][license-image]][license-url]
-[![Downloads][downloads-image]][downloads-url]
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
 
-  HTTP response freshness testing
+HTTP response freshness testing
 
 ## fresh(req, res)
 
@@ -38,19 +36,13 @@ fresh(req, res);
 $ npm install fresh
 ```
 
-[npm-image]: https://img.shields.io/npm/v/fresh.svg?style=flat-square
+[npm-image]: https://img.shields.io/npm/v/fresh.svg?style=flat
 [npm-url]: https://npmjs.org/package/fresh
-[github-tag]: http://img.shields.io/github/tag/jshttp/fresh.svg?style=flat-square
-[github-url]: https://github.com/jshttp/fresh/tags
-[travis-image]: https://img.shields.io/travis/jshttp/fresh.svg?style=flat-square
+[node-version-image]: https://img.shields.io/badge/node.js-%3E%3D_0.8-brightgreen.svg?style=flat
+[node-version-url]: http://nodejs.org/download/
+[travis-image]: https://img.shields.io/travis/jshttp/fresh.svg?style=flat
 [travis-url]: https://travis-ci.org/jshttp/fresh
-[coveralls-image]: https://img.shields.io/coveralls/jshttp/fresh.svg?style=flat-square
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/fresh.svg?style=flat
 [coveralls-url]: https://coveralls.io/r/jshttp/fresh?branch=master
-[david-image]: http://img.shields.io/david/jshttp/fresh.svg?style=flat-square
-[david-url]: https://david-dm.org/jshttp/fresh
-[license-image]: http://img.shields.io/npm/l/fresh.svg?style=flat-square
-[license-url]: LICENSE
-[downloads-image]: http://img.shields.io/npm/dm/fresh.svg?style=flat-square
+[downloads-image]: https://img.shields.io/npm/dm/fresh.svg?style=flat
 [downloads-url]: https://npmjs.org/package/fresh
-[gittip-image]: https://img.shields.io/gittip/jonathanong.svg?style=flat-square
-[gittip-url]: https://www.gittip.com/jonathanong/