update Cloudflare steps

Author: ethanpalm

guides/csp-configuration.mdx

@@ -58,14 +58,18 @@ Most reverse proxies support adding custom headers.
 
 ### Cloudflare configuration
 
-In your Cloudflare dashboard:
+Create a Response Header Transform Rule:
 
-1. Go to **Security** > **Transform Rules** > **Modify Response Header**.
-2. Create a new rule for your documentation domain.
-3. Add HTTP Response Header:
-  - **Operation**: Set static
+1. In your Cloudflare dashboard, go to **Rules > Overview**.
+2. Select **Create rule > Response Header Transform Rule**. 
+3. Configure the rule:
+  - **Modify response header**: Set static
   - **Header name**: `Content-Security-Policy`
-  - **Value**: `default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' unpkg.com; style-src 'self' 'unsafe-inline' d4tuoctqmanu0.cloudfront.net; font-src 'self' d4tuoctqmanu0.cloudfront.net; img-src 'self' data: blob: d3gk2c5xim1je2.cloudfront.net; connect-src 'self' *.mintlify.dev; frame-src 'self' *.mintlify.dev;`
+  - **Header value**:
+    ```text wrap
+    default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' unpkg.com; style-src 'self' 'unsafe-inline' d4tuoctqmanu0.cloudfront.net; font-src 'self' d4tuoctqmanu0.cloudfront.net; img-src 'self' data: blob: d3gk2c5xim1je2.cloudfront.net; connect-src 'self' *.mintlify.dev; frame-src 'self' *.mintlify.dev;
+    ```
+4. Deploy your rule.
 
 ### AWS CloudFront configuration