Add a Community button.

mainwindow.cpp

@@ -53,6 +53,12 @@ void MainWindow::on_buttonLXQtConfigurationCenter_clicked()
     process->start(file);
 }
 
+void MainWindow::on_buttonCommunity_clicked()
+{
+    QString contributeLink = "https://lubuntu.me/links/";
+    QDesktopServices::openUrl(QUrl(contributeLink));
+}
+
 void MainWindow::on_buttonContribute_clicked()
 {
     QString contributeLink = "https://phab.lubuntu.me/w/contributor-guide/";

mainwindow.h

@@ -37,6 +37,8 @@ private slots:
 
     void on_buttonLXQtConfigurationCenter_clicked();
 
+    void on_buttonCommunity_clicked();
+
     void on_buttonContribute_clicked();
 
     void on_actionAbout_triggered();

mainwindow.ui

@@ -47,6 +47,16 @@
         </property>
        </widget>
       </item>
+      <item>
+       <widget class="QPushButton" name="buttonCommunity">
+        <property name="toolTip">
+         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Want to talk with other Lubuntu users? Join the community!&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+        </property>
+        <property name="text">
+         <string>Lubuntu Community</string>
+        </property>
+       </widget>
+      </item>
       <item>
        <widget class="QPushButton" name="buttonContribute">
         <property name="toolTip">