fixed section heading text size

customize/custom-domain-names.markdown

@@ -11,7 +11,7 @@ AppFog offers two ways to add custom domain names to your app: through the app c
 
 Once you've finished adding the domain to your app in one of those two ways, you'll need to [change your DNS settings at your DNS host](#custom-domain-dns).
 
-# App Console {#custom-domain-app-console}
+## App Console {#custom-domain-app-console}
 
 1. Head over to the [app console](https://console.appfog.com) and click on your app. 
 
@@ -21,7 +21,7 @@ Once you've finished adding the domain to your app in one of those two ways, you
 
 That's it!
 
-# AF CLI {#custom-domain-af-cli}
+### AF CLI {#custom-domain-af-cli}
 
 1. If you haven't already, install the [af command line tool](http://docs.appfog.com/getting-started/af-cli) and log in. 
 
@@ -33,19 +33,19 @@ For example:
 
     $ af map exampleapp www.example.com
 
-# DNS {#custom-domain-dns}
+### DNS {#custom-domain-dns}
 
 > **Note:** If you intend to use SSL with your site, ***STOP HERE*** and go check out our [SSL for Custom Domains](http://docs.appfog.com/customize/ssl) documentation. It includes information on the different DNS configuration needed for SSL Endpoint termination.
 
 We recommend using the `www.` subdomain as your canonical domain. Here's how to do that: 
 
-### Redirect Your Root Domain
+#### Redirect Your Root Domain
 
 At your DNS host, set up a redirect (302) from your root domain (`yourdomain.com`) to `www.yourdomain.com`.
 
 This is a fairly standard tool that DNS services provide. If you don’t see an option for it at your domain host, contact their support services and they should be able to do that for you.
 
-### Create a CNAME Alias
+#### Create a CNAME Alias
 
 Depending on which infrastructure your app is running on, create a CNAME alias record for `www.yourdomain.com` to: