og metadata, add preorder link

_data/metadata.js

@@ -1,6 +1,6 @@
 export default {
 	title: "FediZineFest",
 	description: "A zine sharing project for the fediverse",
-	url: "fedizinefest.fyi",
+	url: "https://fedizinefest.fyi",
 	author: "Lee Cattarin",
 };

_includes/head.njk

@@ -23,7 +23,7 @@
 	<meta property="og:description" content="{{ metadata.description }}" />
 
 	<link rel="icon" type="image/x-icon" href="/favicon.ico">
-	<meta property="og:image" content="/img/2026-2027-logo-dark.png" />
+	<meta property="og:image" content="{{ metadata.url }}/img/2026-2027-logo-dark.png" />
 	<meta property="og:image:alt"
 	  content="the logo of FediZineFest 2026-2027 which is a 4 by 4 grid of blocky letters reading fedi zine fest 26-27, randomly colored with the 26-27 palette" />
 

src/years/2025/index.md

@@ -4,8 +4,6 @@ title: FediZineFest 2025
 
 ![a logo in dark purple and golden yellow. it looks sorta like a folded map, or like a single piece of printer paper that's been folded and cut into the format needed for an 8-page zine. the 8 panels read FEDI ZINE. next to this, a blue and green folded 8-page zine reads 'fest 2025'](/img/2025-logo.png){class="inset"}
 
-## Overview
-
 Read the [FediZineFest 2025 guidelines.](/years/2025/guidelines)
 
 See the [FediZineFest 2025 zines.](/years/2025/zines)

src/years/2026-2027/index.md

@@ -10,6 +10,8 @@ layout: base.njk
 
 The interest form for 2026-2027 is open on the [signup page.](/signup)
 
+[Pre-order zine bundles now!](https://ko-fi.com/inherentlee/shop/fedizinefest2026_2027)
+
 Read the [FediZineFest 2026-2027 guidelines.](/years/2026-2027/guidelines)
 
 ## Team