add ellisbrown.github.io reference (alshedivat#1008)

Author: ellisbrown

README.md

@@ -85,6 +85,7 @@ Feel free to add your own page(s) by sending a PR.
 <a href="https://tylerbarna.com" target="_blank">★</a>
 <a href="https://daviddmc.github.io/" target="_blank">★</a>
 <a href="https://andreaskuster.ch/" target="_blank">★</a>
+<a href="https://ellisbrown.github.io/" target="_blank">★</a>
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