Update README.md

README.md

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 # A Named Entity Recognition Model for Kazakh
 - The model was inspired by the [LREC 2022](https://lrec2022.lrec-conf.org/en/) paper [*KazNERD: Kazakh Named Entity Recognition Dataset*](https://aclanthology.org/2022.lrec-1.44).
-- The original repository for the paper can be found at *https://github.com/IS2AI/KazNERD*.
+- The original repository for the paper can be found at *https://github.com/IS2AI/KazNERD*.
+## Differences
+While the original dataset contained tokens denoting speech disfluencies and hesitations (parenthesised) and background noise [bracketed], this model was trained on a version of the dataset where such tokens were removed.