More tags
Conll has `multilingual` but is only tagged as `en` good catch, that was a bad copy paste x)
Since the hub v2 is going to be released soon I figured it would be great to add the missing tags at least for some of the datasets of reference listed [here](https://github.com/huggingface/datasets/blob/master/ADD_NEW_DATASET.md#write-the-loadingprocessing-code)