Update ChangeLog and NEWS for bugfix release

v2.5/toolkit/ChangeLog

+2024-03-04  Public release of the fastNLO_toolkit package version 2.5.1, tag 3011
+            =====================================================================
+
+2023-11-01  JohannesGaessler <johannesg@5d6.de>
+
+        * v2.5/toolkit/fastnlotoolkit/fastNLOCoeffAddFlex.cc,
+        v2.5/toolkit/fastnlotoolkit/include/fastnlotk/fastNLOCoeffAddFlex.h:
+        Fixed table merge segfault depending on file order
+
 2023-09-30  Public release of the fastNLO_toolkit package version 2.5.1, tag 3000
             =====================================================================
 
-        2023-09-25  Klaus Rabbertz <klaus.rabbertz@cern.ch>
+2023-09-30  Klaus Rabbertz <klaus.rabbertz@cern.ch>
+
+        * v2.5/toolkit/NEWS: Update NEWS
+
+2023-09-30  Klaus Rabbertz <klaus.rabbertz@cern.ch>
+
+        * v2.5/toolkit/ChangeLog: Update ChangeLog
+
+2023-09-25  Klaus Rabbertz <klaus.rabbertz@cern.ch>
 
         * v2.5/toolkit/fastnlotoolkit/fastNLOCreate.cc: Modify printout to
         follow fastnlo standard

v2.5/toolkit/NEWS

+Notes for public release of the fastNLO_toolkit package version 2.5.1, tag 3011
+===============================================================================
+Fixed table merge segfault depending on file order
+
+
 Notes for public release of the fastNLO_toolkit package version 2.5.1, tag 3000
 ===============================================================================
 Only printout fixed