Update app.py

app.py

@@ -25,7 +25,7 @@ custom_css = """
 def question(prompt, optimization_mode):
 
     try:
-        # the url to the Perplexity backend (http://url.com:3001/api search/)
+        # url to the Perplexica backend (http://url.com:3001/api search/)
         url = secreturl
         
         payload = {