Fix --backend flag and description

generic_rag/app.py

@@ -21,11 +21,11 @@ logger = logging.getLogger(__name__)
 parser = argparse.ArgumentParser(description="A Sogeti Nederland Generic RAG demo.")
 parser.add_argument(
     "-b",
-    "--back-end",
+    "--backend",
     type=BackendType,
     choices=list(BackendType),
     default=BackendType.azure,
-    help="(Cloud) back-end to use. In the case of local, a locally installed ollama will be used.",
+    help="Cloud provider to use as backend. In the case of local, Ollama needs to be installed..",
 )
 parser.add_argument(
     "-p",