added change list

Author: sameer-pradhan

README.txt

@@ -4,9 +4,13 @@ NAME
 
 
 VERSION
-   v8.0 -- reference implementations of MUC, B-cubed, CEAF and BLANC metrics.
+   v8.01 -- reference implementations of MUC, B-cubed, CEAF and BLANC metrics.
 
 
+CHANGES SINCE v8.0
+   - fixed a bug that crashed the BLANC scorer when a duplicate singleton
+     mention was present in the response.
+
 INSTALLATION
    Requirements:
       1. Perl: downloadable from http://perl.org