Change apostrophe placement in advanced.rst
See Rule2a on
@@ -227,7 +227,7 @@ By default, ``verify`` is set to True. Option ``verify`` only applies to host ce
You can also specify a local cert to use as client side certificate, as a single
file (containing the private key and the certificate) or as a tuple of both
-file's path::
+files' paths::
>>> requests.get('https://kennethreitz.org', cert=('/path/client.cert', '/path/client.key'))
<Response [200]>
