Update app.py

app.py

@@ -140,7 +140,7 @@ def document_loading_splitting():
 
     #andere loader...
     # Load PDF
-    loader = PyPDFLoader(PDF_URL1)
+    loader = PyPDFLoader(PDF_URL)
     docs.extend(loader.load())
     # Load Web
     loader = WebBaseLoader(WEB_URL)