Update API call variables

Author: maxvp

src/content/partials/cloudflare-one/gateway/lists.mdx

@@ -48,9 +48,9 @@ You can now use this list in the policy builder by choosing the _in list_ operat
 <TabItem label="API">
 
 ```bash
-curl https://api.cloudflare.com/client/v4/accounts/{account_id}/gateway/lists \
+curl https://api.cloudflare.com/client/v4/accounts/$ACCOUNT_ID/gateway/lists \
 --header "Content-Type: application/json" \
---header "Authorization: Bearer <API_TOKEN>" \
+--header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
 --data '{
   "description": "Private application IPs",
   "items": [{"value": "10.226.0.177/32"},{"value": "10.226.1.177/32"}],