Jdorescf patch 2 (#17789)

* New Reference Architecture Diagram - DNS filtering solution for Internet Service Providers

* Create dummy.txt

* Add files via upload

* Delete src/assets/images/reference-architecture/gateway-dns-for-isp/dummy.txt

* Update src/content/docs/reference-architecture/diagrams/sase/gateway-dns-for-isp.mdx

Co-authored-by: hyperlint-ai[bot] <154288675+hyperlint-ai[bot]@users.noreply.github.com>

* Update gateway-dns-for-isp.mdx

Removing https://developers.cloudflare.com from links because they should be relative.

* Update src/content/docs/reference-architecture/diagrams/sase/gateway-dns-for-isp.mdx

Co-authored-by: hyperlint-ai[bot] <154288675+hyperlint-ai[bot]@users.noreply.github.com>

* Update src/content/docs/reference-architecture/diagrams/sase/gateway-dns-for-isp.mdx

Co-authored-by: hyperlint-ai[bot] <154288675+hyperlint-ai[bot]@users.noreply.github.com>

* Update src/content/docs/reference-architecture/diagrams/sase/gateway-dns-for-isp.mdx

Co-authored-by: hyperlint-ai[bot] <154288675+hyperlint-ai[bot]@users.noreply.github.com>

* PCX Review

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Co-authored-by: Simon Thorpe <[email protected]>
Co-authored-by: hyperlint-ai[bot] <154288675+hyperlint-ai[bot]@users.noreply.github.com>
Co-authored-by: Jun Lee <[email protected]>

Author: 4 people