Fix typo (#371)

tylerbrockett · lepture · commit 95451eb48d97 · 2018-02-14T13:52:11.000+09:00
configuation -&gt; configuration
diff --git a/docs/client.rst b/docs/client.rst
@@ -18,7 +18,7 @@ the imports::
 OAuth1 Client
 -------------
 
-The difference between OAuth1 and OAuth2 in the configuation is
+The difference between OAuth1 and OAuth2 in the configuration is
 ``request_token_url``. In OAuth1 it is required, in OAuth2 it should be
 ``None``.
 
