Add some friendly info to the README

Author: leto

README.md

@@ -63,7 +63,19 @@ This is how you use it:
     on your client machine. You'll need root or sudo
     access, and python needs to be installed.
 
- - <tt>./sshuttle -r username@sshserver 0.0.0.0/0 -vv</tt>
+ - The most basic use of sshuttle looks like:
+  <tt>./sshuttle -r username@sshserver 0.0.0.0/0 -vv</tt>
+
+ - There is a shortcut for 0.0.0.0/0 for those that value
+   their wrists
+   <tt>./sshuttle -r username@sshserver 0/0 -vv</tt>
+
+ - If you would also like your DNS queries to be proxied
+   through the DNS server of the server you are connect to:
+   <tt>./sshuttle --dns -rvv username@sshserver 0/0</tt>
+
+   The above is probably what you want to use to prevent
+   local network attacks such as Firesheep and friends.
 
 (You may be prompted for one or more passwords; first, the
 local password to become root using either sudo or su, and