docs(generated): fix fs imports in stream examples

Generated SDK source code using:
- Generator version 3.110.0
- Specification version 1.0.0-dev0.1.33
- Automation (cloudant-sdks) version 128d5e0

Author: cloudant-sdks-automation

examples/README.md

@@ -675,7 +675,7 @@ service = CloudantV1.new_instance()
 with open("products_doc.json", "rb") as products_doc:
   response = service.post_document(
       db='products',
-      document=products_doc_binary,
+      document=products_doc,
       content_type="application/json"
   ).get_result()
 

examples/snippets/postDocument/example_request_as_a_stream.py

@@ -6,7 +6,7 @@
 with open("products_doc.json", "rb") as products_doc:
   response = service.post_document(
       db='products',
-      document=products_doc_binary,
+      document=products_doc,
       content_type="application/json"
   ).get_result()