feat: Update Eclipse Sparkplug name to Sparkplug

• feat: Update Eclipse Sparkplug name to Sparkplug

Relates to #48 (closed)

src/main/resources/working_groups.json

@@ -535,11 +535,11 @@
     },
     "sparkplug": {
       "alias": "sparkplug",
-      "title": "Eclipse Sparkplug Working Group",
+      "title": "Sparkplug® Working Group",
       "status": "active",
       "parent_organization": "eclipse",
       "logo": "https://www.eclipse.org/org/workinggroups/assets/images/wg-sparkplug.svg",
-      "description": "The Eclipse Sparkplug Working Group drives the evolution and broad adoption of the Eclipse Sparkplug protocol and related technologies that enable the creation of open, collaborative, and interoperable Industrial IoT solutions, and a framework for supporting Industry 4.0.",
+      "description": "The Eclipse Sparkplug® Working Group drives the evolution and broad adoption of the Eclipse Sparkplug® protocol and related technologies that enable the creation of open, collaborative, and interoperable Industrial IoT solutions, and a framework for supporting Industry 4.0.",
       "resources": {
         "charter": "https://www.eclipse.org/org/workinggroups/eclipse_sparkplug_charter.php",
         "participation_agreements": {