Update README.md

Author: garyb

README.md

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 # purescript-maps
 
-[![Latest release](http://img.shields.io/bower/v/purescript-maps.svg)](https://github.com/purescript/purescript-maps/releases)
-[![Build Status](https://travis-ci.org/purescript/purescript-maps.svg?branch=master)](https://travis-ci.org/purescript/purescript-maps)
-[![Dependency Status](https://www.versioneye.com/user/projects/55848c1b363861001d000315/badge.svg?style=flat)](https://www.versioneye.com/user/projects/55848c1b363861001d000315)
+[![Latest release](http://img.shields.io/github/release/purescript/purescript-maps.svg)](https://github.com/purescript/purescript-maps/releases)
+[![Build status](https://travis-ci.org/purescript/purescript-maps.svg?branch=master)](https://travis-ci.org/purescript/purescript-maps)
 
 Purely-functional map data structures.