Fix missing delay-5 animation, update llms.txt and sitemap

- Add .reveal.delay-5 CSS class (Neovim project card had no stagger)
- Add MDPreview and Neovim Configuration to llms.txt for parity with index.html
- Update sitemap.xml lastmod to 2026-05-10

Author: jonathanau

assets/css/index.css

@@ -1008,3 +1008,4 @@ h1, h2, h3, h4, h5, h6 {
 .reveal.delay-2 { transition-delay: 200ms; }
 .reveal.delay-3 { transition-delay: 300ms; }
 .reveal.delay-4 { transition-delay: 400ms; }
+.reveal.delay-5 { transition-delay: 500ms; }

llms.txt

@@ -67,6 +67,19 @@ He is currently investing in applied AI/ML, with recent certifications in deep l
 - Description: A fully responsive, touch-friendly modern implementation of the classic Snake game. Engineered specifically for seamless play on mobile devices as well as desktop browsers with an intuitive control scheme.
 - Technologies: JavaScript, HTML5 Canvas, CSS3, Mobile UI/UX
 
+### MDPreview
+- Category: Developer Tools
+- URL: https://mdpreview.onrender.com/
+- Repository: https://github.com/jonathanau/mdpreview
+- Description: A minimal, distraction-free Markdown editor built for the kinds of writing that feed AI systems: system prompts, agent instructions, RAG source documents, and project context files. Runs entirely in the browser with no server or account required, and documents persist locally via IndexedDB. Features a CodeMirror 6 split-pane editor, 8 color themes, multi-document management, and export to .md or rendered HTML.
+- Technologies: Markdown, JavaScript, CodeMirror 6, IndexedDB, Vite
+
+### Neovim Configuration
+- Category: Dev Environment
+- Repository: https://github.com/jonathanau/neovim-config
+- Description: A modern, Lua-based Neovim setup with a lineage tracing back to my vimrc from 2005. Built around lazy.nvim for plugin management, Mason for automatic LSP installation, Telescope for fuzzy finding, and Treesitter for syntax highlighting. Includes a Ghostty integration that wraps Neovim as a native macOS app, launchable directly from Spotlight.
+- Technologies: Lua, Neovim, LSP, lazy.nvim
+
 ## Contact
 
 - LinkedIn: https://www.linkedin.com/in/jonathanau/

sitemap.xml

@@ -2,7 +2,7 @@
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
   <url>
     <loc>https://jonathanau.onrender.com/</loc>
-    <lastmod>2026-04-24</lastmod>
+    <lastmod>2026-05-10</lastmod>
     <changefreq>monthly</changefreq>
     <priority>1.0</priority>
   </url>