minor "overall" output changes

seqeval_with_fbeta.py

@@ -175,8 +175,8 @@ class Seqeval_With_Beta(evaluate.Metric):
         scores["overall"] = {
             "precision": overall_score["precision"],
             "recall": overall_score["recall"],
-            "f1-score": overall_score["f1-score"],
-            f"f{beta}-score": overall_score[f"f{beta}-score"],
+            "f1": overall_score["f1-score"],
+            f"f{beta}": overall_score[f"f{beta}-score"],
             "accuracy": accuracy_score(y_true=references, y_pred=predictions)
         }