Add my new, shiny module.

README.md

@@ -81,7 +81,7 @@ This metric outputs a dictionary with the SARI score:
 
 ```
 print(results)
-{'sari': 26.953601953601954, 'keep': 0.22527472527472525, 'del': 0.5, 'add': 0.08333333333333333}
+{'sari': 26.953601953601954, 'keep': 22.527472527472526, 'del': 50.0, 'add': 8.333333333333332}
 ```
 
 The range of values for the SARI score is between 0 and 100 -- the higher the value, the better the performance of the model being evaluated, with a SARI of 100 being a perfect score.