[model_cards] Switch all languages codes to ISO-639-{1,2,3}

model_cards/mrm8488/spanbert-base-finetuned-tacred/README.md

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-language: english
+language: en
 thumbnail:
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model_cards/mrm8488/spanbert-finetuned-squadv1/README.md

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-language: english
+language: en
 thumbnail:
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model_cards/mrm8488/spanbert-finetuned-squadv2/README.md

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-language: english
+language: en
 thumbnail:
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model_cards/mrm8488/spanbert-large-finetuned-squadv1/README.md

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-language: english
+language: en
 thumbnail:
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model_cards/mrm8488/spanbert-large-finetuned-squadv2/README.md

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-language: english
+language: en
 thumbnail:
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model_cards/mrm8488/spanbert-large-finetuned-tacred/README.md

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-language: english
+language: en
 thumbnail:
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model_cards/mrm8488/t5-base-finetuned-emotion/README.md

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-language: english
+language: en
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 # T5-base fine-tuned for Emotion Recognition 😂😢😡😃😯

model_cards/mrm8488/t5-base-finetuned-imdb-sentiment/README.md

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-language: english
+language: en
 datasets:
 - imdb
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model_cards/mrm8488/t5-base-finetuned-sarcasm-twitter/README.md

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-language: english
+language: en
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 # T5-base fine-tuned for Sarcasm Detection 🙄

model_cards/mrm8488/t5-base-finetuned-span-sentiment-extraction/README.md

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-language: english
+language: en
 thumbnail:
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model_cards/mrm8488/t5-base-finetuned-squadv2/README.md

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-language: english
+language: en
 datasets:
 - squad_v2
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model_cards/mrm8488/t5-base-finetuned-summarize-news/README.md

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-language: english
+language: en
 thumbnail:
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model_cards/mrm8488/t5-small-finetuned-squadv1/README.md

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-language: english
+language: en
 datasets:
 - squad
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model_cards/mrm8488/t5-small-finetuned-squadv2/README.md

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-language: english
+language: en
 datasets:
 - squad_v2
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model_cards/mrm8488/umberto-wikipedia-uncased-v1-finetuned-squadv1-it/README.md

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-language: italian
+language: it
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 # UmBERTo Wikipedia Uncased +  italian SQuAD v1 📚 🧐 ❓

model_cards/nlpaueb/bert-base-greek-uncased-v1/README.md

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-language: greek
+language: el
 thumbnail: https://github.com/nlpaueb/GreekBERT/raw/master/greek-bert-logo.png
 ---
 

model_cards/nlptown/bert-base-multilingual-uncased-sentiment/README.md

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 language:
-- english
-- dutch
-- german
-- french
-- italian
-- spanish
+- en
+- nl
+- de
+- fr
+- it
+- es
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 # bert-base-multilingual-uncased-sentiment

model_cards/pierreguillou/gpt2-small-portuguese/README.md

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-language: Portuguese
+language: pt
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 # GPorTuguese-2: a Language Model for Portuguese text generation (and more NLP tasks...)

model_cards/redewiedergabe/bert-base-historical-german-rw-cased/README.md

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-language: german
+language: de
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 # Model description

model_cards/roberta-base-README.md

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-language: english
+language: en
 tags:
 - exbert
 license: mit