Update domain-categories.mdx

adding the Ads category reference back

Author: alexmoraru7

src/content/docs/cloudflare-one/policies/gateway/domain-categories.mdx

@@ -42,6 +42,7 @@ Subdomains that have not been assigned a category will inherit the category of t
 
 | Category               | Definition                                                                                                                                                                        |
 | ---------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| Ads                    | Sites that are hosting content related to advertising.                                                                                                                            |
 | Adult Themes           | Sites that are hosting content related to pornography, nudity, sexuality, and other adult themes.                                                                                 |
 | Business & Economy     | Sites that are related to business, economy, finance, education, science and technology.                                                                                          |
 | Child Abuse            | Sites hosting child abuse content.                                                                                                                                                |
@@ -91,6 +92,7 @@ Subdomains that have not been assigned a category will inherit the category of t
 
 | Category ID | Category Name          | Subcategory ID | Subcategory Name                           |
 | ----------- | ---------------------- | -------------- | ------------------------------------------ |
+| 1           | Ads                    | 66             | Advertisements                             |
 | 2           | Adult Themes           | 67             | Adult Themes                               |
 | 2           | Adult Themes           | 125            | Nudity                                     |
 | 2           | Adult Themes           | 133            | Pornography                                |