Point the docs and landing banners to the GLM-5.3 post (#4476)

Co-authored-by: Andrey Cheptsov <andrey.cheptsov@github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

Author: 3 people

mkdocs/overrides/main.html

@@ -228,7 +228,7 @@
 {% endblock %}
 
 {% block announce %}
-<a href="/blog/qwen38-flash-next-coding-agents/">Serve Fastest Qwen3.8-Flash-Next Coding Agents on 4xH200<span class="icon"><svg viewBox="0 0 24 24" width="17" height="17" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M4 12h15"/><path d="m12.5 5.5 6.5 6.5-6.5 6.5"/></svg></span></a>
+<a href="/blog/glm53-gb200-nvl72-coding-agents/">Serve GLM-5.3 Coding Agents Faster and Cheaper on GB200 NVL72<span class="icon"><svg viewBox="0 0 24 24" width="17" height="17" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M4 12h15"/><path d="m12.5 5.5 6.5 6.5-6.5 6.5"/></svg></span></a>
 {% endblock %}
 
 {# Footer is rendered INSIDE .md-content (above, after the article) — NOT as a full-width sibling —

website/src/components/SiteBanner.tsx

@@ -3,8 +3,8 @@ import { BLOG_URL } from '../routes';
 // Top announcement banner, mirroring the one on the MkDocs docs site. It sits above the top
 // nav; the two stick to the top together (see .site-header). Update the copy/href here when
 // the announcement changes.
-const BANNER_TEXT = 'Serve Fastest Qwen3.8-Flash-Next Coding Agents on 4xH200';
-const BANNER_HREF = `${BLOG_URL}/qwen38-flash-next-coding-agents/`;
+const BANNER_TEXT = 'Serve GLM-5.3 Coding Agents Faster and Cheaper on GB200 NVL72';
+const BANNER_HREF = `${BLOG_URL}/glm53-gb200-nvl72-coding-agents/`;
 
 export function SiteBanner() {
   return (