Add Butter partner page

pcd-website/src/config/sponsors.ts

@@ -1,5 +1,6 @@
 import type { ImageMetadata } from 'astro';
 import openProcessingLogo from '../images/openprocessing_logo.svg';
+import butterLogo from '../images/butter_logo.svg';
 
 export interface Sponsor {
   name: string;
@@ -13,4 +14,9 @@ export const SPONSORS: Sponsor[] = [
     href: 'https://openprocessing.org',
     logo: openProcessingLogo,
   },
+  {
+    name: 'Butter',
+    href: 'https://www.butter.video/',
+    logo: butterLogo,
+  },
 ];

pcd-website/src/content/organizer-kit/partner-pages/butter.md

@@ -0,0 +1,21 @@
+---
+title: Butter
+hideFromNav: true
+order: 1
+description: Free Butter Pro for PCD participants in October 2026
+draft: false
+hideToc: true
+partnerCard:
+  logo: ../../../images/butter_logo.svg
+  summary: Get free access to Butter Pro as a PCD participant during October 2026 and build a tool to get a chance to win a cash prize.
+---
+
+[Butter](https://www.butter.video/) is an online video editor with customizable blocks for motion graphics, animated type, and visual effects.
+
+## Butter Pro in October
+
+Butter is offering PCD participants access to Butter Pro during October 2026. Details on how to claim access will be shared here when available.
+
+## Creative Coding Challenge
+
+Details TBD