Update app.py

app.py

@@ -136,7 +136,7 @@ def runchecks(message,history):
                 results.append([site,botsCheck])
         df_log = pd.DataFrame(results)
         return str(df_log)
-    elif message == 'check sitemaps' or message == 'Check Sitemaps':
+    elif message == 'check sitemap' or message == 'Check Sitemap':
         results.append(['Website','Sitemap Status'])
         for site in BTsites:
             print(f"Checking sitemaps for {site}...")