Add multilingual to the language tag

Hi! A PR to add multilingual to the language tag to improve the referencing.

README.md

@@ -2,30 +2,30 @@
 language:
 - en
 - de
+- multilingual
+license: cc-by-4.0
 tags:
 - translation
 - opus-mt-tc
-license: cc-by-4.0
 model-index:
 - name: opus-mt-tc-base-en-de
   results:
   - task:
-      name: Translation eng-deu
       type: translation
-      args: eng-deu
+      name: Translation eng-deu
     dataset:
       name: tatoeba-test-v2021-08-07
       type: tatoeba_mt
       args: eng-deu
     metrics:
-    - name: BLEU
-      type: bleu
+    - type: bleu
       value: 43.7
+      name: BLEU
 ---
 
 # Opus Tatoeba English-German
 
-*This model was obtained by running the script [convert_marian_to_pytorch.py](https://github.com/huggingface/transformers/blob/master/src/transformers/models/marian/convert_marian_to_pytorch.py). The original models were trained by [Jörg Tiedemann](https://blogs.helsinki.fi/tiedeman/) using the [MarianNMT](https://marian-nmt.github.io/) library. See all available `MarianMTModel` models on the profile of the [Helsinki NLP](https://huggingface.co/Helsinki-NLP) group.*
+*This model was obtained by running the script [convert_marian_to_pytorch.py](https://github.com/huggingface/transformers/blob/master/src/transformers/models/marian/convert_marian_to_pytorch.py). The original models were trained by [J�rg Tiedemann](https://blogs.helsinki.fi/tiedeman/) using the [MarianNMT](https://marian-nmt.github.io/) library. See all available `MarianMTModel` models on the profile of the [Helsinki NLP](https://huggingface.co/Helsinki-NLP) group.*
 
 * dataset: opusTCv20210807+bt
 * model: transformer-big