Update Mac required version on Downloads

Author: orbitalmartian8

pages/downloads.html

@@ -61,7 +61,7 @@ <h4 class="my-0 font-weight-normal">macOS</h4>
               <i class="fa fa-apple fa-5x icons-dowloads" ></i>
               <ul class="list-unstyled mt-3 mb-4">
                 <b>System Requirements:</b>
-                <li>OS: Mac OS X 10.11.4 </li> 
+                <li>OS: Mac OS 11 or above </li> 
                 <li>Processor:  Intel or ARM </li>
                 <li>RAM: 1 GB </li>
                 <li></li>