Update app.py

app.py

@@ -173,7 +173,7 @@ def find_algnments(
     align_words = []
     for i, j, k in non_zeros:
         if j + 1 < source_tokens_len - 1 and k + 1 < target_tokens_len - 1:
-            align_words.append(f"{[bpe_source_map[j + 1]}-> {bpe_target_map[k + 1]]}")
+            align_words.append(f"{bpe_source_map[j + 1]}-> {bpe_target_map[k + 1]}")
     return list(set(align_words))