Fix status badges in README (#108)

* fix badges in README

* Switch to Markdown batches and add circleci badge

* Retrigger coveralls status

Co-authored-by: Christian Koopmann <[email protected]>

Author: ckoopmann

README.md

@@ -1,9 +1,6 @@
-<p align="center">
-  <a href="https://circleci.com/gh/SetProtocol/index-coop-contracts/tree/master">
-    <img src="https://img.shields.io/circleci/project/github/SetProtocol/index-coop-smart-contracts/master.svg" />
-  </a>
-  <a href='https://coveralls.io/github/SetProtocol/index-coop-contracts?branch=master'><img src='https://coveralls.io/repos/github/SetProtocol/index-coop-smart-contracts/badge.svg?branch=master&amp;t=4pzROZ' alt='Coverage Status' /></a>
-</p>
+[![CircleCI](https://dl.circleci.com/status-badge/img/gh/IndexCoop/index-coop-smart-contracts/tree/master.svg?style=svg)](https://dl.circleci.com/status-badge/redirect/gh/IndexCoop/index-coop-smart-contracts/tree/master)
+
+[![Coverage Status](https://coveralls.io/repos/github/IndexCoop/index-coop-smart-contracts/badge.svg)](https://coveralls.io/github/IndexCoop/index-coop-smart-contracts)
 
 # index