Updated docstrings. Updated readme

Author: Dan

README.rst

@@ -7,6 +7,9 @@ parallel-ssh uses asychronous network requests - there is *no* multi-threading o
 
 This is a *requirement* for commands on many (hundreds/thousands/hundreds of thousands) of hosts which would grind a system to a halt simply by having so many processes/threads all wanting to execute if done with multi-threading/processing.
 
+.. image:: https://img.shields.io/pypi/v/parallel-ssh.svg
+  :target: https://pypi.python.org/pypi/parallel-ssh
+  :alt: Latest Version
 .. image:: https://travis-ci.org/pkittenis/parallel-ssh.svg?branch=master
   :target: https://travis-ci.org/pkittenis/parallel-ssh
 .. image:: https://coveralls.io/repos/pkittenis/parallel-ssh/badge.png?branch=master

pssh.py

@@ -431,7 +431,7 @@ def __init__(self, hosts,
         # To hold host clients
         self.host_clients = dict((host, None) for host in hosts)
 
-    def run_command(self, *args, **kwargs):
+    def run_command(self, *args, sudo=False, **kwargs):
         """Run command on all hosts in parallel, honoring self.pool_size,
         and return output buffers.
 
@@ -441,6 +441,8 @@ def run_command(self, *args, **kwargs):
 
         :param args: Positional arguments for command
         :type args: tuple
+        :param sudo: (Optional) Run with sudo. Defaults to False
+        :type sudo: bool
         :param kwargs: Keyword arguments for command
         :type kwargs: dict