Update roles.mdx formatting (#26001)

Author: keefetangcf

src/content/docs/fundamentals/manage-members/roles.mdx

@@ -110,7 +110,7 @@ Resource-scoped roles is currently in Beta.
 :::
 
 | Role                                      | Description                                                                      |
-| ----------------------------------------- | -------------------------------------------------------------------------------- | --- |
+| ----------------------------------------- | -------------------------------------------------------------------------------- |
 | Cloudflare Access App Admin               | Grants full access to a specific Access Application in an account.               |
 | Cloudflare Access Identity Provider Admin | Grants full access to a specific Access identity provider(IdP) in an account.    |
-| Access for Infrastructure Target Admin    | Grants full access to a specific Access for Infrastructure. Target in an account |     |
+| Access for Infrastructure Target Admin    | Grants full access to a specific Access for Infrastructure. Target in an account |