chore: use 🧪 as logo/mascot (#119)

Author: smeijer

.gitignore

@@ -5,6 +5,7 @@
 
 dist/
 node_modules/
+local/
 
 # Local Netlify folder
 .netlify

README.md

@@ -1,7 +1,21 @@
-# Testing-Playground ([demo][playground])
+<div align="center">
+  <h1>Testing-Playground</h1>
+  
+  [![test-tube](./docs/icon.png)][emojione]
+
+Simple and complete DOM testing playground that encourage good testing
+practices.
+
+[**online playground**][playground] | [next version][playground-next]
+
+</div>
+
+<hr />
 
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
+
 [![All Contributors](https://img.shields.io/badge/all_contributors-7-orange.svg?style=flat-square)](#contributors-)
+
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 **Playground for [testing-library/dom]**
@@ -105,16 +119,19 @@ Thanks goes to these people ([emoji key][emojis]):
 
 <!-- markdownlint-enable -->
 <!-- prettier-ignore-end -->
+
 <!-- ALL-CONTRIBUTORS-LIST:END -->
 
 This project follows the [all-contributors][all-contributors] specification.
 Contributions of any kind welcome!
 
 [testing-library/dom]: https://testing-library.com/docs/dom-testing-library/example-intro
 [playground]: https://testing-playground.com
+[playground-next]: https://develop.testing-playground.com
 [embed-demo]: https://codepen.io/smeijer/pen/yLYWZmK
 [roadmap.md]: https://github.com/smeijer/testing-playground/blob/master/ROADMAP.md
 [contributing.md]: https://github.com/smeijer/testing-playground/blob/master/CONTRIBUTING.md
 [issue tracker]: https://github.com/smeijer/testing-playground/issues
 [all-contributors]: https://github.com/all-contributors/all-contributors
 [emojis]: https://github.com/all-contributors/all-contributors#emoji-key
+[emojione]: https://www.emojione.com/emoji/1f9e

docs/icon.png

@@ -8,7 +8,7 @@
     "start:embed": "parcel src/embed.html --open",
     "build": "run-s clean build:client build:server",
     "build:client": "parcel build src/index.html src/embed.js --dist-dir dist/client",
-    "postbuild:client": "mkdir -p dist/client/public && cp _redirects dist/client/_redirects && cp public/favicon.ico dist/client/favicon.ico && cp public/android-chrome-512x512.png dist/client/public/icon.png && cp -r .well-known dist/client/.well-known",
+    "postbuild:client": "mkdir -p dist/client/public && cp _redirects dist/client/_redirects && cp public/favicon.ico dist/client/favicon.ico && cp public/icon.png dist/client/public/icon.png && cp -r .well-known dist/client/.well-known",
     "build:server": "cp -r src/lambda/ dist/server",
     "postbuild:server": "mkdir -p dist/server/server && mv dist/client/index.html dist/server/server/",
     "lint": "eslint . --quiet --fix",