X3dTidy add WorldInfo title

Space/SpaceAttack/SpaceAttack.x3d

@@ -5,7 +5,7 @@
     <meta content='SpaceAttack.x3d' name='title'/>
     <meta content='Mike Perry' name='creator'/>
     <meta content='17 August 2000' name='created'/>
-    <meta content='1 June 2012' name='modified'/>
+    <meta content='28 November 2019' name='modified'/>
     <meta content='Three Space Ships Attack' name='description'/>
     <meta content='https://savage.nps.edu/Savage/Space/SpaceAttack/SpaceAttack.x3d' name='identifier'/>
     <meta content='X3D-Edit 3.2, https://savage.nps.edu/X3D-Edit' name='generator'/>
@@ -13,6 +13,7 @@
   </head>
   <Scene>
     <!-- The Background Planets -->
+    <WorldInfo title='SpaceAttack.x3d'/>
     <Transform translation='0 0 -15'>
       <Shape>
         <Sphere radius='2.4'/>