add tags (#8147)

model_cards/google/bert2bert_L-24_wmt_de_en/README.md

@@ -5,6 +5,8 @@ language:
 license: apache-2.0
 datasets:
 - wmt14
+tags:
+- translation
 ---
 
 # bert2bert_L-24_wmt_de_en EncoderDecoder model

model_cards/google/bert2bert_L-24_wmt_en_de/README.md

@@ -5,6 +5,8 @@ language:
 license: apache-2.0
 datasets:
 - wmt14
+tags:
+- translation
 ---
 
 # bert2bert_L-24_wmt_en_de EncoderDecoder model

model_cards/google/roberta2roberta_L-24_bbc/README.md

@@ -3,6 +3,8 @@ language: en
 license: apache-2.0
 datasets:
 - xsum
+tags:
+- summarization
 ---
 
 # Roberta2Roberta_L-24_bbc EncoderDecoder model

model_cards/google/roberta2roberta_L-24_cnn_daily_mail/README.md

@@ -3,6 +3,8 @@ language: en
 license: apache-2.0
 datasets:
 - cnn_dailymail
+tags:
+- summarization
 ---
 
 # Roberta2Roberta_L-24_cnn_daily_mail EncoderDecoder model

model_cards/google/roberta2roberta_L-24_gigaword/README.md

@@ -3,6 +3,8 @@ language: en
 license: apache-2.0
 datasets:
 - gigaword
+tags:
+- summarization
 ---
 
 # Roberta2Roberta_L-24_gigaword EncoderDecoder model