Add website link to Sparkplug working group

Change-Id: Idc9d7cc665df6daade6c5593296bcfe5ec4f6292
Signed-off-by: Eric Poirier <eric.poirier@eclipse-foundation.org>
diff --git a/workinggroups/assets/inc/app.php b/workinggroups/assets/inc/app.php
index 4d2445e..443ff8f 100644
--- a/workinggroups/assets/inc/app.php
+++ b/workinggroups/assets/inc/app.php
@@ -183,7 +183,7 @@
     'title' => 'Sparkplug',
     'logo' => 'wg_sparkplug-logo-text.png',
     'body' => 'The Eclipse Sparkplug Working Group seeks to drive the evolution and broad adoption of the Eclipse Sparkplug protocol and related technologies that enable the creation of open, collaborative, and interoperable Industrial IoT (IIoT) solutions. Eclipse Sparkplug promotes the definition of technical specifications and associated implementations that rationalize access to industrial data, improve the interoperability and scalability of IIoT solutions, and provide an overall framework for supporting Industry 4.0.',
-    'website' => '',
+    'website' => 'https://sparkplug.eclipse.org/',
     'wgpa' => '/org/workinggroups/wpga/sparkplug_working_group_participation_agreement.pdf',
     'charter' => '/org/workinggroups/eclipse_sparkplug_charter.php',
     'mailing-list' => '',