Add badges to readme [ci skip]

README.md

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+Projekt Euler
+=============
+
+[![Build Status](https://travis-ci.org/PFischbeck/projekteuler.svg?branch=master)](https://travis-ci.org/PFischbeck/projekteuler)
+[![Coverage Status](https://img.shields.io/coveralls/PFischbeck/projekteuler.svg)](https://coveralls.io/r/PFischbeck/projekteuler?branch=master)
+[![Code Climate](https://codeclimate.com/github/PFischbeck/projekteuler/badges/gpa.svg)](https://codeclimate.com/github/PFischbeck/projekteuler)
+[![Dependency Status](https://gemnasium.com/PFischbeck/projekteuler.svg)](https://gemnasium.com/PFischbeck/projekteuler)
+
+This is a rails app for the german translation of [projecteuler.net](https://projecteuler.net).
+
+Currently, it doesn't have a website, but when most of the current issues are fixed, it will be uploaded.

README.rdoc

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-== README
-
-This README would normally document whatever steps are necessary to get the
-application up and running.
-
-Things you may want to cover:
-
-* Ruby version
-
-* System dependencies
-
-* Configuration
-
-* Database creation
-
-* Database initialization
-
-* How to run the test suite
-
-* Services (job queues, cache servers, search engines, etc.)
-
-* Deployment instructions
-
-* ...
-
-
-Please feel free to use a different markup language if you do not plan to run
-<tt>rake doc:app</tt>.