Merge pull request #12094 from kragniz/flat-badges

Set issuestats badges to flat style

Changed files
+2 -2
+2 -2
README.md
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[<img src="http://nixos.org/logo/nixos-hires.png" width="500px" alt="logo" />](https://nixos.org/nixos)
[![Build Status](https://travis-ci.org/NixOS/nixpkgs.svg?branch=master)](https://travis-ci.org/NixOS/nixpkgs)
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[![Issue Stats](http://www.issuestats.com/github/nixos/nixpkgs/badge/pr)](http://www.issuestats.com/github/nixos/nixpkgs)
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[![Issue Stats](http://www.issuestats.com/github/nixos/nixpkgs/badge/issue)](http://www.issuestats.com/github/nixos/nixpkgs)
+
[![Issue Stats](http://www.issuestats.com/github/nixos/nixpkgs/badge/pr?style=flat)](http://www.issuestats.com/github/nixos/nixpkgs)
+
[![Issue Stats](http://www.issuestats.com/github/nixos/nixpkgs/badge/issue?style=flat)](http://www.issuestats.com/github/nixos/nixpkgs)
Nixpkgs is a collection of packages for the [Nix](https://nixos.org/nix/) package
manager. It is periodically built and tested by the [hydra](http://hydra.nixos.org/)