updated return method and copy

app.py

@@ -12,13 +12,16 @@ def tweet_tester(tweet1, tweet2):
     diff_pct = (pred1 - pred2) / pred1 * 100
     # truncate diff_pct to 2 decimal places
     diff_pct = round(diff_pct, 3)
-    return diff_pct
+    if diff_pct > 0:
+        return f"tweet2 is {diff_pct}% better than tweet1"
+    else:
+        return f"tweet2 is {abs(diff_pct)}% worse than tweet1"
 
 interface = gr.Interface(
     title="Tweet A/B Test",
-    description="Enter the text of two tweets you'd like to A/B test. The output number represents the percent difference in expected likes between the two tweets. If the number is positive, the second tweet is more likely to get more likes than the first tweet. If the number is negative, the first tweet is more likely to get more likes than the second tweet.",
+    description="Enter the text of two tweets you'd like to A/B test. The output number represents the percent difference in expected likes between the two tweets.",
     fn=tweet_tester,
     inputs=["text", "text"],
-    outputs=["number"]
+    outputs=["text"]
 )
-interface.launch()
+interface.launch()