Update change log

Author: jim-easterbrook

CHANGELOG.txt

@@ -15,6 +15,9 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+Changes in 2.3.2:
+  1/ Fix "undefined symbol: static_assert" error with Linux binary wheels.
+
 Changes in 2.3.1:
   1/ Add MacOS "binary wheels". These have not been thoroughly tested.
   2/ Update libgphoto2 to v2.5.28.