Update PHP steps

Author: maxvp

src/content/docs/cloudflare-one/connections/connect-devices/warp/user-side-certificates/manual-deployment.mdx

@@ -586,7 +586,7 @@ If you're using the AWS CLI, you need to set the `AWS_CA_BUNDLE` environment var
 
 ### PHP Composer
 
-The command below will set the [`cafile`](https://getcomposer.org/doc/06-config.md#cafile) configuration inside of `composer.json` to use the Cloudflare root certificate. Make sure to use the certificate in the [`.pem`](/cloudflare-one/static/certificate.pem) file type.
+The command below will set the [`cafile`](https://getcomposer.org/doc/06-config.md#cafile) configuration inside of `composer.json` to use a Cloudflare root certificate. Make sure to [download a certificate](#download-the-cloudflare-root-certificate) in `.pem` format.
 
 ```sh
 composer config cafile [PATH_TO_CLOUDFLARE_CERT.pem]