Revamp the Graphite website (#1265)

Revamp the website with more content

website/content/volunteer/_index.md

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+title = "Volunteer"
+
+[extra]
+css = ["/volunteer.css"]
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+
+<section class="section-row">
+<div class="section">
+
+# Volunteer
+
+Graphite is built by volunteers. Join the effort to bring great, free creative software to the world.
+
+</div>
+</section>
+
+<section class="section-row">
+
+<div class="diptych">
+
+<div class="section creative-contributions">
+
+## Creative contributions
+
+<a href="https://discord.graphite.rs" class="button arrow">Ask how to begin (Discord)</a>
+
+<div class="info-box">
+
+### ART TEAM
+
+Use your artistic talents to plan and produce ambitious open art projects published by the Graphite project to stress-test and showcase the editor's capabilities.
+
+</div>
+<div class="info-box">
+
+### PUBLICITY TEAM
+
+Become the author of feature announcements, [blog](/blog) posts, website content, the user manual, press releases, social media posts, and industry outreach.
+<!-- Become the author of feature announcements, [blog](/blog) posts, website content, the [user manual](/learn), press releases, social media posts, and industry outreach. -->
+
+</div>
+
+</div>
+<div class="section code-contributions">
+
+## Code contributions
+
+<a href="/volunteer/guide" class="button arrow">Contributor guide</a>
+
+<div class="info-box">
+
+### EDITOR TEAM
+
+Write code to build and maintain the Graphite editor itself, ranging from the Svelte/TypeScript frontend UI to the tooling business logic written in Rust.
+
+</div>
+<div class="info-box">
+
+### GRAPHENE TEAM
+
+Develop the core engine that powers Graphite's node graph and rendering. Graphene is a programming language, compiler, and distributed runtime ecosystem built upon Rust.
+
+</div>
+
+</div>
+
+</div>
+
+</section>