Fix context policy

Author: maxvp

src/content/docs/cloudflare-one/policies/gateway/block-page.mdx

@@ -53,8 +53,8 @@ To create an HTTP policy to redirect URLs, refer to the [Redirect action](/cloud
 
 Paths and queries in the redirect URL take precedence over the original URL. When you turn on **Send policy context**, Gateway will append context to the end of the redirected URL. For example, if the original URL is `example.com/path/to/page?querystring=X&k=1` and the redirect URL is `cloudflare.com/redirect-path?querystring=Y`, Gateway will redirect requests to:
 
-```txt ins="&user_email[email protected]"
-cloudflare.com/redirect-path?querystring=Y&user_email[email protected]
+```txt ins="&cf_user_email[email protected]"
+cloudflare.com/redirect-path?querystring=Y&cf_user_email[email protected]
 ```
 
 ### Customize the block page

src/content/docs/cloudflare-one/policies/gateway/http-policies/index.mdx

@@ -145,8 +145,8 @@ cloudflare.com/redirect-path/path/to/page?querystring=Y
 
 When you turn on both options, Gateway will preserve the original path and query string, then append policy context to the end of the redirect URL. For example, if the original URL is `example.com/path/to/page?querystring=X&k=1` and the redirect URL is `cloudflare.com/redirect-path?querystring=Y`, Gateway will redirect requests to:
 
-```txt "cloudflare.com/redirect-path" "?querystring=Y" ins="&user_email[email protected]"
-cloudflare.com/redirect-path/path/to/page?querystring=Y&k=1&user_email[email protected]
+```txt "cloudflare.com/redirect-path" "?querystring=Y" ins="&cf_user_email[email protected]"
+cloudflare.com/redirect-path/path/to/page?querystring=Y&k=1&cf_user_email[email protected]
 ```
 
 ### Isolate