Update scripts/process.py

scripts/process.py

@@ -7,6 +7,7 @@ from haystack.schema import Answer
 from haystack.document_stores import InMemoryDocumentStore
 from haystack.pipelines import ExtractiveQAPipeline
 from haystack.nodes import FARMReader, TfidfRetriever
+from haystack.nodes.file_converter import PDFToTextConverter, TextConverter
 from haystack.schema import Document
 import logging
 from markdown import markdown