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

model_cards/asafaya/bert-base-arabic/README.md

 ---
-language: arabic
+language: ar
 ---
 
 # Arabic BERT Model

model_cards/asafaya/bert-large-arabic/README.md

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-language: arabic
+language: ar
 ---
 
 # Arabic BERT Large Model

model_cards/asafaya/bert-medium-arabic/README.md

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-language: arabic
+language: ar
 ---
 
 # Arabic BERT Medium Model

model_cards/asafaya/bert-mini-arabic/README.md

 ---
-language: arabic
+language: ar
 datasets:
 - oscar
 - wikipedia

model_cards/aubmindlab/bert-base-arabert/README.md

 ---
-language: arabic
+language: ar
 ---
 
 # AraBERT : Pre-training BERT for Arabic Language Understanding

model_cards/aubmindlab/bert-base-arabertv01/README.md

 ---
-language: arabic
+language: ar
 ---
 
 # AraBERT : Pre-training BERT for Arabic Language Understanding

model_cards/bashar-talafha/multi-dialect-bert-base-arabic/README.md

 ---
-language: arabic
+language: ar
 thumbnail: https://raw.githubusercontent.com/mawdoo3/Multi-dialect-Arabic-BERT/master/multidialct_arabic_bert.png
 datasets:
 - nadi

model_cards/bert-base-cased-README.md

 ---
-language: english
+language: en
 tags:
 - exbert
 license: apache-2.0

model_cards/bert-base-chinese-README.md

 ---
-language: chinese
+language: zh
 ---

model_cards/bert-base-german-cased-README.md

 ---
-language: german
+language: de
 thumbnail: https://static.tildacdn.com/tild6438-3730-4164-b266-613634323466/german_bert.png
 tags:
 - exbert

model_cards/bert-base-german-dbmdz-cased-README.md

 ---
-language: german
+language: de
 license: mit
 ---

model_cards/bert-base-german-dbmdz-uncased-README.md

 ---
-language: german
+language: de
 license: mit
 ---

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

 ---
-language: english
+language: en
 license: apache-2.0
 datasets:
 - wikipedia

model_cards/bert-base-uncased-README.md

 ---
-language: english
+language: en
 tags:
 - exbert
 license: apache-2.0

model_cards/camembert-base-README.md

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-language: french
+language: fr
 
 license: mit
 ---

model_cards/camembert/camembert-base-ccnet-4gb/README.md

 ---
-language: french
+language: fr
 ---
 
 # CamemBERT: a Tasty French Language Model

model_cards/camembert/camembert-base-ccnet/README.md

 ---
-language: french
+language: fr
 ---
 
 # CamemBERT: a Tasty French Language Model

model_cards/camembert/camembert-base-oscar-4gb/README.md

 ---
-language: french
+language: fr
 ---
 
 # CamemBERT: a Tasty French Language Model

model_cards/camembert/camembert-base-wikipedia-4gb/README.md

 ---
-language: french
+language: fr
 ---
 
 # CamemBERT: a Tasty French Language Model

model_cards/camembert/camembert-large/README.md

 ---
-language: french
+language: fr
 ---
 
 # CamemBERT: a Tasty French Language Model