add copyright

Author: 8BitAurum

index.html

@@ -108,6 +108,7 @@ <h1 class="w3-center">About The Engine</h2>
     <a href="https://dsc.gg/sypherengine"><i class="fab fa-discord w3-hover-opacity"></i></a>
   </div>
   <p>Powered by <a href="https://www.w3schools.com/w3css/default.asp" title="W3.CSS" target="_blank" class="w3-hover-text-green">w3.css</a></p>
+  <p class="w3-small">(c) Copyright of AurumByte 2021 - 2022</p>
 
   <div>