fix: typo fix

app.py

@@ -5,7 +5,7 @@ st.title("Text Summarisation")
 pipe = pipeline(task="summarization", model="facebook/bart-large-cnn")
 text_value = st.text_area("Summarise the following")
 
-if text:
+if text_value:
     out = pipe(text_value, max_length=int(len(text_value)/2), min_length=int(len(text_value)/3), do_sample=False)
     
     if len(out) >= 1: