Rework password auth section, fixing code block
Rework password auth section, fixing code block

bmess/riak-python-client,basho/riak-python-client,basho/riak-python-client,basho/riak-python-client,GabrielNicolasAvellaneda/riak-python-client,bmess/riak-python-client,GabrielNicolasAvellaneda/riak-python-client