avoid & in url

Tools/Animation/PushButtonPrototype.x3d

@@ -6,7 +6,7 @@
     <meta content='PushButton widget prototype declaration, inner button and outer shape can be round or square' name='description'/>
     <meta content='Don Brutzman, Murat Onder and MV4205 class, Spring 2004 Quarter' name='creator'/>
     <meta content='11 May 2004' name='created'/>
-    <meta content='28 November 2019' name='modified'/>
+    <meta content='3 July 2022' name='modified'/>
     <meta content='PushButtonExample.x3d' name='reference'/>
     <meta content='https://savage.nps.edu/Savage/Tools/Animation/PushButtonPrototype.x3d' name='identifier'/>
     <meta content='X3D-Edit 3.2, https://savage.nps.edu/X3D-Edit' name='generator'/>
@@ -267,7 +267,7 @@ function printError(s1, s2)
     <!-- ==================== -->
     <Anchor description='PushButtonExample' parameter='"target=_blank"' url='"PushButtonExample.x3d" "../../Tools/Animation/PushButtonExample.x3d" "https://savage.nps.edu/Savage/Tools/Animation/PushButtonExample.x3d" "../../Tools/Animation/PushButtonExample.wrl" "PushButtonExample.wrl" "https://savage.nps.edu/Savage/Tools/Animation/PushButtonExample.wrl"'>
       <Shape>
-        <Text string='"PushButtonPrototype" "defines a prototype" "" "Click text to see example scene" "" "You can define 4 different buttons" "with the combination of round&amp;square" "(default is round-round)"'>
+        <Text string='"PushButtonPrototype" "defines a prototype" "" "Click text to see example scene" "" "You can define 4 different buttons" "with the combination of round and square" "(default is round-round)"'>
           <FontStyle justify='"MIDDLE" "MIDDLE"' size='0.7'/>
         </Text>
         <Appearance>