DOC: Change "batch data" to "batch download"

Author: Carter Green

databento/historical/api/batch.py

@@ -94,7 +94,7 @@ def submit_job(
         Returns
         -------
         Dict[str, Any]
-            The job info for submitted batch data request.
+            The job info for submitted batch download request.
 
         Warnings
         --------

databento/historical/api/timeseries.py

@@ -224,7 +224,7 @@ def _pre_check_data_size(  # noqa (prefer not to make static)
                 "\nThe size of the current streaming request is estimated "
                 "to be 5 GB or greater. We recommend smaller "
                 "individual streaming request sizes, or alternatively "
-                "submit a batch data request."
+                "submit a batch download request."
                 "\nYou can check the uncompressed binary size of a request "
                 "through the metadata API (from the client library, or over "
                 "HTTP).\nThis warning can be suppressed "

notebooks/quickstart.ipynb

@@ -35,7 +35,7 @@
     "- Using the historical client to request metadata\n",
     "- Using the historical client to request time series market data\n",
     "- Working with Bento data I/O helper objects\n",
-    "- Using the historical client to make batch data requests\n",
+    "- Using the historical client to make batch download requests\n",
     "- Querying batch job states\n",
     "\n",
     "**Tip:** You can call help() on any class or method to see the 'docstring'."
@@ -1581,7 +1581,7 @@
     }
    },
    "source": [
-    "The client library can also make batch data requests to the Databento API."
+    "The client library can also make batch download requests to the Databento API."
    ]
   },
   {