wifi trigger

app/src/main/res/layout/activity_manage_action_set_variable.xml

@@ -61,6 +61,12 @@
             android:layout_marginVertical="@dimen/default_margin"
             android:text="@string/setVariableExplanation" />
 
+        <TextView
+            android:id="@+id/tvLegend"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/urlLegend" />
+
         <Button
             android:id="@+id/bSaveVariable"
             android:layout_marginTop="@dimen/default_margin"