Update for Python3

Made some changes to be able to run it on python3

Author: petersimeth

README.rst

@@ -5,12 +5,14 @@ httpmon - the simple HTTP monitoring solution
 This is a trivial script to setup in order to monitor the availability of
 websites and send email when a site is down.
 
+Now for Python 3.x
+
 Usage
 =====
 
 ::
 
-    % python httpmon.py http://yoursite.com
-    % python httpmon.py -e "you@gmail.com" http://site1.com http://site2.com
-    % python httpmon.py --help
+    % python3 httpmon.py http://yoursite.com
+    % python3 httpmon.py -e "you@gmail.com" http://site1.com http://site2.com
+    % python3 httpmon.py --help