Adding mMARCO dataset
Hi @albertvillanova we've made a major overhaul of the loading script including all configurations we're making available. Could you please review it again? @albertvillanova :ping_pong:  Thanks @lhbonifacio for adding this dataset.
Hi there, i got an error about mmarco:
ConnectionError: Couldn't reach 'unicamp-dl/mmarco' on the Hub (ConnectionError)
code:
`from datasets import list_datasets, load_dataset
dataset = load_dataset('unicamp-dl/mmarco', language='portuguese')`

Any help will be appreciated! Hi @catqaq, we updated the loading script. Now you can load the datasets with:

```python
dataset = load_dataset('unicamp-dl/mmarco', 'portuguese')
```

You can check the list of supported languages and usage examples in [this link](https://huggingface.co/datasets/unicamp-dl/mmarco). Feel free to contact us if you have any issues. 


> 



> Hi @catqaq, we updated the loading script. Now you can load the datasets with:
> 
> ```python
> dataset = load_dataset('unicamp-dl/mmarco', 'portuguese')
> ```
> 
> You can check the list of supported languages and usage examples in [this link](https://huggingface.co/datasets/unicamp-dl/mmarco). Feel free to contact us if you have any issues.

Thanks for your quick updates. So, how can i get the fixed version, install from the source? It seems that the merging is blocked. @catqaq you can load mMARCO using the namespace `unicamp-dl/mmarco` while this PR remains under review.
Adding mMARCO (v1.1) to HF datasets.