Add a header recommending that the visitor use GeminiHEADmaster

This patch adds a <header> element that says a proxied page is best
viewed through Gemini, and includes a link to the project Gemini FAQ[a],
to nytpu's Why Gemini article[b], and to the Gemini quickstart[c].

This patch is useful for users that believe the <details> block at the
bottom of the page is too subtle, and wish to direct more traffic to
their Gemini capsule as opposed to the web proxy.

[a]: https://gemini.circumlunar.space/docs/faq.gmi
[b]: https://nytpu.com/why-gemini.gmi
[c]: "chttps://geminiquickst.art/

1 files changed, 11 insertions, 0 deletions

diff --git a/main.go b/main.go
index c600985..77c35c5 100644
--- a/main.go
+++ b/main.go
@@ -135,6 +135,17 @@ var gemtextPage = template.Must(template.
 </style>
 {{- end }}
 {{- end }}
+<header>
+	<p>
+		This site is significiantly improved by visting through the
+		<a href="https://gemini.circumlunar.space/docs/faq.gmi" target="_blank">Gemini Protocol.</a>
+	</p>
+	<p>
+		<a href="https://nytpu.com/why-gemini.gmi" target="_blank">Why use Gemini?</a> &mdash;
+		<a href="https://geminiquickst.art/" target="_blank">See the Gemini Quickstart to get started!</a>
+	</p>
+	<hr>
+</header>
 <title>{{.Title}}</title>
 <article{{if .Lang}} lang="{{.Lang}}"{{end}}>
 	{{ $ctx := . -}}