Update vocab.json

vocab.json

@@ -1,3 +1,3 @@
 {" ": 0, "<pad>": 1, "[UNK]": 2, "a": 3, "b": 4, "c": 5, "d": 6, "e": 7, "f": 8, "g": 9, "h": 10, "i": 11, "j": 12, "k": 13, "l": 14, "m": 15, "n": 16, "o": 17, "p": 18, "q": 19, "r": 20, "s": 21, "t": 22, "u": 23, "v": 24, "w": 25, "x": 26, "y": 27, "z": 28, "\u00e4": 29, "\u00fc": 30, "\u0107": 31, "\u010d": 32, "\u0111": 33, "\u0161": 34, "\u017e": 35, "\u04e7": 36, 
 "1":37, "2": 38,"3": 39,"4": 40,"5": 41,"6": 42,"7": 43,"8": 44,"9": 45,"0": 46,
-".": 47 }
+".": 47, "<s>": 48, "</s>": 49}