Added API and Terraform code to create the allow list policy

Author: tcerqueira-cf

src/content/docs/learning-paths/secure-internet-traffic/build-dns-policies/create-list.mdx

@@ -12,8 +12,47 @@ Gateway supports creating [lists](/cloudflare-one/policies/gateway/lists/) of UR
 
 ## Example list policy
 
+<Tabs syncKey="dashPlusAPI">
+<TabItem label="Dashboard">
 The following DNS policy will allow access to all approved corporate domains included in a list called **Corporate Domains**.
 
 | Selector | Operator | Value               | Action |
 | -------- | -------- | ------------------- | ------ |
 | Domain   | in list  | *Corporate Domains* | Allow  |
+</TabItem>
+<TabItem label="API">
+	```sh
+curl --request POST \
+  --url https://api.cloudflare.com/client/v4/accounts/{account_id}/gateway/rules \
+  --header 'Content-Type: application/json' \
+  --header "Authorization: Bearer <API TOKEN>" \
+	--data '{
+  "name": "All-DNS-CorporateDomain-AllowList",
+  "description": "Allow access to the corporate domains defined under the Corporate Domains list",
+  "precedence": 1,
+  "enabled": false,
+  "action": "allow",
+  "filters": [
+    "dns"
+  ],
+  "traffic": "any(dns.domains[*] in $<Corporate Domains List UUID>)"
+}'
+
+	```
+</TabItem>
+<TabItem label="Terraform">
+To create a new DNS policy using **Terraform** to allow access to all approved corporate domains included in a list called **Corporate Domains**.
+```tf
+resource "cloudflare_zero_trust_gateway_policy" "allow_corporate_domain_access" {
+  account_id  = var.account_id
+  name        = "All-DNS-CorporateDomain-AllowList"
+  description = "Allow access to the corporate domains defined under the Corporate Domains list"
+  precedence  = 1
+  enabled     = false
+  action      = "allow"
+  filters     = ["dns"]
+  traffic     = "any(dns.domains[*] in $<Corporate Domains List UUID>)"
+}
+```
+</TabItem>
+</Tabs>