Fix the MPI standard conformance level notices on the front page

Signed-off-by: Jeff Squyres <jeff@squyres.com>

Author: jsquyres

index.php

@@ -39,7 +39,7 @@ function pr($name, $url, $comma) {
 <td valign=top>
 <ul>
 
-<li> Full MPI-4.1 standards conformance
+<li> Full MPI-3.1 standards conformance, with many elements from MPI-4.0
 <li> Thread safety and concurrency
 <li> Dynamic process spawning
 <li> Network and process fault tolerance