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

model_cards/julien-c/EsperBERTo-small/README.md

 ---
-language: esperanto
+language: eo
 thumbnail: https://huggingface.co/blog/assets/EsperBERTo-thumbnail-v2.png
 widget:
 - text: "Jen la komenco de bela <mask>."

model_cards/krevas/finance-koelectra-base-discriminator/README.md

 ---
-language: korean
+language: ko
 ---
 
 # 📈 Financial Korean ELECTRA model

model_cards/krevas/finance-koelectra-base-generator/README.md

 ---
-language: korean
+language: ko
 ---
 
 # 📈 Financial Korean ELECTRA model

model_cards/krevas/finance-koelectra-small-discriminator/README.md

 ---
-language: korean
+language: ko
 ---
 
 # 📈 Financial Korean ELECTRA model

model_cards/krevas/finance-koelectra-small-generator/README.md

 ---
-language: korean
+language: ko
 ---
 
 # 📈 Financial Korean ELECTRA model

model_cards/lserinol/bert-turkish-question-answering/README.md

 ---
-language: turkish
+language: tr
 ---
 
 # bert-turkish-question-answering

model_cards/monologg/koelectra-base-discriminator/README.md

 ---
-language: Korean
+language: ko
 ---
 
 # KoELECTRA (Base Discriminator)

model_cards/monologg/koelectra-base-generator/README.md

 ---
-language: Korean
+language: ko
 ---
 
 # KoELECTRA (Base Generator)

model_cards/monologg/koelectra-small-discriminator/README.md

 ---
-language: Korean
+language: ko
 ---
 
 # KoELECTRA (Small Discriminator)

model_cards/monologg/koelectra-small-generator/README.md

 ---
-language: Korean
+language: ko
 ---
 
 # KoELECTRA (Small Generator)

model_cards/monsoon-nlp/hindi-bert/README.md

 ---
-language: Hindi
+language: hi
 ---
 
 # Hindi-BERT (Discriminator)

model_cards/mrm8488/GPT-2-finetuned-CORD19/README.md

 ---
-language: english
+language: en
 thumbnail:
 ---
 

model_cards/mrm8488/GPT-2-finetuned-covid-bio-medrxiv/README.md

 ---
-language: english
+language: en
 thumbnail:
 ---
 

model_cards/mrm8488/RuPERTa-base-finetuned-ner/README.md

 ---
-language: spanish
+language: es
 thumbnail:
 ---
 

model_cards/mrm8488/RuPERTa-base-finetuned-pos/README.md

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-language: spanish
+language: es
 thumbnail:
 ---
 

model_cards/mrm8488/RuPERTa-base/README.md

 ---
-language: spanish
+language: es
 ---

model_cards/mrm8488/TinyBERT-spanish-uncased-finetuned-ner/README.md

 ---
-language: spanish
+language: es
 thumbnail:
 ---
 

model_cards/mrm8488/bert-base-spanish-wwm-cased-finetuned-spa-squad2-es/README.md

 ---
-language: spanish
+language: es
 thumbnail: https://i.imgur.com/jgBdimh.png
 ---
 

model_cards/mrm8488/bert-italian-finedtuned-squadv1-it-alfa/README.md

 ---
-language: italian
+language: it
 thumbnail:
 ---
 

model_cards/mrm8488/bert-medium-finetuned-squadv2/README.md

 ---
-language: english
+language: en
 thumbnail:
 ---