DOC: fix numbering of BQ Storage API steps.

Author: tswast

docs/source/reading.rst

@@ -95,29 +95,31 @@ quickly (but at an `increased cost
 <https://cloud.google.com/bigquery/pricing#storage-api>`__) by setting
 ``use_bqstorage_api`` to ``True``.
 
-1.  Enable the BigQuery Storage API on the project you are using to run
-    queries.
+#. Enable the BigQuery Storage API on the project you are using to run
+   queries.
 
-    `Enable the API
-    <https://console.cloud.google.com/apis/library/bigquerystorage.googleapis.com>`__.
-2.  Ensure you have the `*bigquery.readsessions.create permission*
-    <https://cloud.google.com/bigquery/docs/access-control#bq-permissions>`__. to
-    create BigQuery Storage API read sessions. This permission is provided by
-    the `*bigquery.user* role
-    <https://cloud.google.com/bigquery/docs/access-control#roles>`__.
-4.  Install the ``google-cloud-bigquery-storage``, ``fastavro``, and
-     ``python-snappy`` packages.
+   `Enable the API
+   <https://console.cloud.google.com/apis/library/bigquerystorage.googleapis.com>`__.
+#. Ensure you have the `bigquery.readsessions.create permission
+   <https://cloud.google.com/bigquery/docs/access-control#bq-permissions>`__. to
+   create BigQuery Storage API read sessions. This permission is provided by
+   the `bigquery.user role
+   <https://cloud.google.com/bigquery/docs/access-control#roles>`__.
+#. Install the ``google-cloud-bigquery-storage``, ``fastavro``, and
+   ``python-snappy`` packages.
 
-     With pip:
+   With pip:
 
-    ..code-block:: sh
+   .. code-block:: sh
 
-       pip install --upgrade google-cloud-bigquery-storage fastavro python-snappy
+      pip install --upgrade google-cloud-bigquery-storage fastavro python-snappy
 
-    With conda:
+   With conda:
 
-       conda install -c conda-forge google-cloud-bigquery-storage fastavro python-snappy
-4. Set ``use_bqstorage_api`` to ``True`` when calling the
+   .. code-block:: sh
+
+      conda install -c conda-forge google-cloud-bigquery-storage fastavro python-snappy
+#. Set ``use_bqstorage_api`` to ``True`` when calling the
    :func:`~pandas_gbq.read_gbq` function. As of the ``google-cloud-bigquery``
    package, version 1.11.1 or later,the function will fallback to the
    BigQuery API if the BigQuery Storage API cannot be used, such as with