docs(socks): same block as other sections

strange formatting:
https://docs.python-requests.org/en/latest/user/advanced/#socks

Author: magsen

docs/user/advanced.rst

@@ -675,9 +675,7 @@ In addition to basic HTTP proxies, Requests also supports proxies using the
 SOCKS protocol. This is an optional feature that requires that additional
 third-party libraries be installed before use.
 
-You can get the dependencies for this feature from ``pip``:
-
-.. code-block:: bash
+You can get the dependencies for this feature from ``pip``::
 
     $ python -m pip install requests[socks]