fix become a members link

Signed-off-by: Christopher Guindon <chris.guindon@eclipse-foundation.org>
diff --git a/exploreMembership.php b/exploreMembership.php
index b4fb9fa..2f5a24c 100644
--- a/exploreMembership.php
+++ b/exploreMembership.php
@@ -41,7 +41,7 @@
         <h1><?php print $pageTitle; ?></h1>

         <p>Meet the Eclipse Foundation members and learn more about the products and services they provide.</p>

         <ul class="hidden-xs list-inline margin-top-30">

-          <li><a class="btn btn-primary" href="#">Become a Member</a></li>

+          <li><a class="btn btn-primary" href="https://accounts.eclipse.org/contact/membership">Become a Member</a></li>

           <li><a class="btn btn-primary" href="/org/workinggroups/explore.php">Explore Working Groups</a></li>

         </ul>

         <ul class="visible-xs list-inline margin-top-30">