Merge pull request #38 from anuaimi/add-rage4-to-dns-page

add Rage4 to the list of support DNS providers

Author: plribeiro3000

dns/index.markdown

@@ -66,7 +66,7 @@ You can add more specifics if you need to, but reasonable defaults make it just
 
 ## No Zerigo? No Problem
 
-If you already have an account with another service you can just as easily use this same code with different credentials. fog currently supports <a href="http://aws.amazon.com/route53/">AWS Route 53</a>, <a href="http://bluebox.net">Blue Box</a>, <a href="http://dnsimple.com">DNSimple</a>, <a href="http://www.linode.com">Linode</a>, <a href="http://www.rackspace.com">Rackspace</a>, <a href="http://www.slicehost.com">Slicehost</a> and <a href="http://www.zerigo.com/managed-dns">Zerigo</a>; so you can have your pick.  As an example you can connect to AWS instead of Zerigo:
+If you already have an account with another service you can just as easily use this same code with different credentials. fog currently supports <a href="http://aws.amazon.com/route53/">AWS Route 53</a>, <a href="http://bluebox.net">Blue Box</a>, <a href="http://dnsimple.com">DNSimple</a>, <a href="http://www.linode.com">Linode</a>, <a href="http://www.rackspace.com">Rackspace</a>, <a href="https://rage4.com">Rage4</a>, <a href="http://www.slicehost.com">Slicehost</a> and <a href="http://www.zerigo.com/managed-dns">Zerigo</a>; so you can have your pick.  As an example you can connect to AWS instead of Zerigo:
 
     dns = Fog::DNS.new({
       :provider               => 'AWS',