Update initialize.py

initialize.py

@@ -8,7 +8,7 @@ from haystack.pipeline import Pipeline
 def init_doc_store(path, files):
     docs = []
     for file in files:
-        with open(path + '/' + file, 'r') as f:
+        with open(path + file, 'r') as f:
             content = f.read()
             docs.append(Document(content=content, meta={'name':file}))