Fix typo

Author: RaptaG

public/index.html

@@ -90,7 +90,7 @@
             </a>
             <a class="navbar-item" href="https://github.com/openandroidinstaller-dev/openandroidinstaller"
               target="_blank">
-              <span class="icon"><i class="fab fa-github"></i></span><span>Github</span>
+              <span class="icon"><i class="fab fa-github"></i></span><span>GitHub</span>
             </a>
             <a class="navbar-item" href="mailto:hello@openandroidinstaller.org">
               <span class="icon"><i class="fa fa-envelope"></i></span><span>Get Help</span>
@@ -570,4 +570,4 @@ <h4 class="subtitle is-5">Donate to the project</h4>
   } 
 </script>
 
-</html>
+</html>