fix issues with docs

docs/clients.rst

@@ -1,5 +1,5 @@
 riakcached.clients
-=================
+==================
 
 .. automodule:: riakcached.clients
   :members:

docs/conf.py

@@ -127,7 +127,7 @@ html_theme = 'nature'
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
-html_static_path = ['_static']
+#html_static_path = ['_static']
 
 # If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
 # using the given strftime format.