fix chi2 visibility in name of the chapter5.2 displayed in PDF Bookmarks (thanks to Wojtek)

git-svn-id: https://svnsrv.desy.de/basic/h1fitter/trunk@1626 b2a8d302-ca0a-427a-b7b9-081adbce06bc
adding pdf file

git-svn-id: https://svnsrv.desy.de/basic/h1fitter/trunk@1627 b2a8d302-ca0a-427a-b7b9-081adbce06bc