Detail how to configure Caddy for HTTP[S] only

[iHarasPro]

Improve "Server/Reverse Proxy/Caddy" documentation to include HTTP only configuration.

I, ibrahim Haras, hereby waive all copyright and related rights in this contribution,
placing it in the public domain under the CC0 1.0 Universal license.
For reference: https://creativecommons.org/publicdomain/zero/1.0/

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