chore: add logo (#1201)

README.md

@@ -1,4 +1,9 @@
-<h2 align="center">commercetools UI Kit 💅</h2>
+<h2 align="center">🎹 commercetools UI Kit 💅</h2>
+
+<p align="center">
+  <img alt="Logo" src="https://raw.githubusercontent.com/commercetools/ui-kit/master/logo.png" /><br /><br />
+</p>
+
 <p align="center">
 <a href="https://www.npmjs.com/package/@commercetools-frontend/ui-kit"><img src="https://badgen.net/npm/v/@commercetools-frontend/ui-kit" alt="Latest release (latest dist-tag)" /></a> <a href="https://www.npmjs.com/package/@commercetools-frontend/ui-kit"><img src="https://badgen.net/npm/v/@commercetools-frontend/ui-kit/next" alt="Latest release (next dist-tag)" /></a> <a href="https://circleci.com/gh/commercetools/ui-kit"><img src="https://circleci.com/gh/commercetools/ui-kit.svg?style=shield&circle-token=477a5b4b825bc5a09b933d15054b99e57e3cbe73" alt="CI status" /></a> <a href="https://percy.io/commercetools-GmbH/merchant-center-application-kit"><img src="https://percy.io/static/images/percy-badge.svg" alt="This project is using Percy.io for visual regression testing" /></a>
 <a href="https://bundlephobia.com/result?p=@commercetools-frontend/ui-kit"><img src="https://badgen.net/bundlephobia/minzip/@commercetools-frontend/ui-kit" alt="Minified + GZipped size" /></a> <a href="https://github.com/commercetools/ui-kit/blob/master/LICENSE"><img src="https://badgen.net/github/license/commercetools/ui-kit" alt="GitHub license" /></a>