* apply grammatical/punctuation/clarity edits from feedback
* explain what the .well-known files do and highlight that
they need to be reverse proxied from base domain
* replace all ports from 6167 to 8008 - C10y's default
* rename page as 'Delegation / split-domain' in the navbar
* rename page title as 'Delegation / split-domain deployment'
* put SRV records disrecommendation in a warning admonition