Update README.md

my bad, languages must be separated by dashes and not commas

README.md

@@ -1,5 +1,31 @@
 ---
-language: multilingual, en, fr, es, de, zh, ar, ru, vi, el, bg, th, tr, hi, ur, sw, nl, uk, ro, pt, it, lt, no, pl, da,ja
+language:
+- multilingual
+- en
+- fr
+- es
+- de
+- zh
+- ar
+- ru
+- vi
+- el
+- bg
+- th
+- tr
+- hi
+- ur
+- sw
+- nl
+- uk
+- ro
+- pt
+- it
+- lt
+- no
+- pl
+- da
+- ja
 
 datasets: wikipedia