Update app.py

app.py

@@ -135,7 +135,7 @@ with demo:
             A problem often faced by researchers is that datasets lack the necessary amount of positive samples \
             (samples containing cancer tissues) that are needed to reliably classify cancer. In this interface you \
             can use the slider to control the percentage of negative and positive samples in each hospital. \
-            Setting this slider to minimum will mean there are 0 positive samples, whereas 0.5 would mean that \
+            Setting this slider to minimum will mean there are 0 positive samples, whereas 50 would mean that \
             half the dataset contains slides with positive tumor samples.\
             """)