added japanese sample

app.py

@@ -38,9 +38,19 @@ if __name__=="__main__":
 
     col1, col2 = st.columns(2)
     with col1:
-        text1 = st.text_area("Input Text", value="The quick brown fox jumps over the lazy dog.")
+        text1 = st.text_area("Input Text", value=
+        """
+            The quick brown fox jumps over the lazy dog.
+            この竹垣に竹立てかけたのは竹立てかけたかったからか竹立てかけ
+        """
+        )
     with col2:
-        text2 = st.text_area("Source Text", value="The quick brown fox jumps over the lazy cat.")
+        text2 = st.text_area("Source Text", value=
+        """
+            The quick brown fox jumps over the lazy cat.
+            この竹垣に竹立てかけたのは竹立てかけたかったから竹立てかけた
+        """
+        )
 
     diff = compare_string(text2, text1)
     fullText = style_text(diff)