Add multilingual to the language tag

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

README.md

@@ -1,12 +1,13 @@
 ---
-language: 
+language:
 - de
 - en
+- multilingual
+license: apache-2.0
 tags:
 - translation
 - wmt19
 - facebook
-license: apache-2.0
 datasets:
 - wmt19
 metrics:
@@ -41,7 +42,7 @@ mname = "facebook/wmt19-de-en"
 tokenizer = FSMTTokenizer.from_pretrained(mname)
 model = FSMTForConditionalGeneration.from_pretrained(mname)
 
-input = "Maschinelles Lernen ist großartig, oder?"
+input = "Maschinelles Lernen ist gro�artig, oder?"
 input_ids = tokenizer.encode(input, return_tensors="pt")
 outputs = model.generate(input_ids)
 decoded = tokenizer.decode(outputs[0], skip_special_tokens=True)