fgm/htmx-demo: HTMX tutorial code based on the https://hypermedia.systems/ book. @ 275b131f6a45f3fabceddcfa93dc95ff0c5fbe55

Frédéric G. MARAND d6575bd3a6 Raw port of contacts.app from Python Flask to Go. First compiling version.		1 rok temu
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contacts.gohtml	d6575bd3a6 Raw port of contacts.app from Python Flask to Go. First compiling version.	1 rok temu
messages.gohtml	d6575bd3a6 Raw port of contacts.app from Python Flask to Go. First compiling version.	1 rok temu
nav.gohtml	d6575bd3a6 Raw port of contacts.app from Python Flask to Go. First compiling version.	1 rok temu
settings.gohtml	d6575bd3a6 Raw port of contacts.app from Python Flask to Go. First compiling version.	1 rok temu