Update version number in license

LICENSE

@@ -1,14 +1,14 @@
-These demo files are part of yFiles for HTML 2.4.
+These demo files are part of yFiles for HTML 2.5.
 https://www.yworks.com/yfileshtml
 Copyright (c) 2000-2022 by yWorks GmbH, Vor dem Kreuzberg 28,
 72070 Tuebingen, Germany. All rights reserved.
 
 yFiles demo files exhibit yFiles for HTML functionalities. Any redistribution
 of demo files in source code or other form, with or without
-modification, is not permitted. The creation of derivative works is prohibited, 
+modification, is not permitted. The creation of derivative works is prohibited,
 unless otherwise explicitly permitted.
 
-Owners of a valid software license for a yFiles for HTML version 
+Owners of a valid software license for a yFiles for HTML version
 are allowed to use these demo sources as basis
 for their own yFiles for HTML powered applications. Use of such programs is
 governed by the rights and conditions as set out in the yFiles for HTML