Update README.md

README.md

@@ -186,7 +186,7 @@ Token classification scores (answering the question: ***given** the span, to whi
       }
 ```
 
-End2End scores (answering the question: *given a text, what are the spans **and** to which class to they belong?*): 
+End2End scores (answering the question: *given a text, what are the spans **and** to which class do they belong?*): 
 ```json
 {
 	"strict": {