Update initialize.py

initialize.py

@@ -43,7 +43,7 @@ def define_components(document_store, api_key):
 def define_pipeline(retreiver, prompt_builder, generator):
     basic_rag_pipeline = Pipeline()
     
-    basic_rag_pipeline.add_component("retriever", retriever)
+    basic_rag_pipeline.add_component("retriever", retreiver)
     basic_rag_pipeline.add_component("prompt_builder", prompt_builder)
     basic_rag_pipeline.add_component("llm", generator)