web site: update MacOS version

Author: damiendoligez

doc/web/content/Download/Binaries/MacOS.html

@@ -18,7 +18,7 @@
 
 <div class="section">
   <h2><img class="blogo" src="images/logo_macosx30s.png"
-           alt="[Apple logo]"/>Mac OS X (10.7 and later)</h2>
+           alt="[Apple logo]"/>Mac OS X (10.13 and later)</h2>
   <p class="first"> The package:
     <code><a type="application/octet-stream"
              href="../../../dist/current/tlaps-1.4.4-i386-darwin-inst.bin">tlaps-1.4.4-i386-darwin-inst.bin</a></code>