New readme structure (#209)

* Experimenting with a sub-README structure

* title

* removing emojis

* some emoji changes

* Fixing a whitespace issue

Author: aaronpowell

.all-contributorsrc

@@ -4,7 +4,7 @@
   "repoType": "github",
   "repoHost": "https://github.com",
   "files": [
-    "update-readme.js"
+    "README.md"
   ],
   "imageSize": 100,
   "commit": false,