Update README.md

README.md

@@ -70,9 +70,10 @@ tags:
 
 # Dataset Summary
 
-**Long-context / document-level** variant of the WMT DA Human Evaluation dataset.
+**Long-context / document-level** dataset for Quality Estimation of Machine Translation.
+It is an augmented variant of the sentence-level WMT DA Human Evaluation dataset.
 In addition to individual sentences, it contains augmentations of 2, 4, 8, 16, and 32 sentences, among each language pair `lp` and `domain`.
-The `raw` column represents a weighted average of scores of augmented sentences using character lengths of or `src` and `mt` as weights.
+The `raw` column represents a weighted average of scores of augmented sentences using character lengths of `src` and `mt` as weights.
 The code used to apply the augmentation can be found [here](https://github.com/ymoslem/datasets/blob/main/LongContextQE/Long-Context-MT-QE-WMT.ipynb).
 
 This dataset contains all DA human annotations from previous WMT News Translation shared tasks.