Corrected github link in footer

Author: Jatin0312

index.html

@@ -224,7 +224,7 @@ <h1>
 		</div>
 		<div class="frame frame6">
 			<div class="footer-icons">
-				<a href="https://github.com/appteam-nith" target="__blank"><img src="./images/github.svg"></a>
+				<a href="https://github.com/appteam-nith/HackOnHills" target="__blank"><img src="./images/github.svg"></a>
 				<a href="https://www.facebook.com/hackonhills/" target="__blank"><img src="./images/fb.svg"></a>
 				<a href="https://www.instagram.com/hackonhills/" target="__blank"><img src="./images/insta.svg"></a>
 				<a href="mailto:hackonhills@gmail.com"><img src="./images/email.svg"></a>