Adding Igbo NER data 
CONTRIBUTOR
Thanks for the PR @purvimisal. 

Few comments below. 
2020-12-14T00:06:43Z
https://github.com/huggingface/datasets/pull/1558#issuecomment-744093550
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CONTRIBUTOR
Hi, @lhoestq Thank you for the review. I have made all the changes. PTAL! 
2020-12-21T00:11:24Z
https://github.com/huggingface/datasets/pull/1558#issuecomment-748692611
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MEMBER
the CI error is not related to your dataset, merging
2020-12-21T14:38:17Z
https://github.com/huggingface/datasets/pull/1558#issuecomment-749005938
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This PR adds the Igbo NER dataset.
Data: https://github.com/IgnatiusEzeani/IGBONLP/tree/master/ig_ner 