* Update ingress-gateways.mdx
Added an example of running the HELM install for the ingress gateways using values.yaml
* Apply suggestions from code review
* Update ingress-gateways.mdx
Adds closing back ticks on example command. The suggesting UI strips them out.
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Co-authored-by: trujillo-adam <47586768+trujillo-adam@users.noreply.github.com>