README.md: remove obsolete `theme` parameter from david-dm badges.

This is the default for quite some time now.

[ci skip]

1 files changed, 2 insertions, 2 deletions

diff --git a/README.md b/README.md
index 51d4ddb..6cea5fb 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,8 @@
 
 [![NPM version](https://badge.fury.io/js/grunt-css-flip.svg)](http://badge.fury.io/js/grunt-css-flip)
 [![Build Status](https://travis-ci.org/twbs/grunt-css-flip.svg?branch=master)](https://travis-ci.org/twbs/grunt-css-flip)
-[![Dependency Status](https://david-dm.org/twbs/grunt-css-flip.svg?theme=shields.io)](https://david-dm.org/twbs/grunt-css-flip)
-[![devDependency Status](https://david-dm.org/twbs/grunt-css-flip/dev-status.svg?theme=shields.io)](https://david-dm.org/twbs/grunt-css-flip#info=devDependencies)
+[![Dependency Status](https://david-dm.org/twbs/grunt-css-flip.svg)](https://david-dm.org/twbs/grunt-css-flip)
+[![devDependency Status](https://david-dm.org/twbs/grunt-css-flip/dev-status.svg)](https://david-dm.org/twbs/grunt-css-flip#info=devDependencies)
 
 > Grunt plugin for [Twitter's css-flip](https://github.com/twitter/css-flip)