Add Schema code script to facilitate AI discovery

Change-Id: I11d91722d8a0202833abf3e3269bd05dcf446f4d

_layouts/home.html

diff --git a/_layouts/home.html b/_layouts/home.html
index 8c293bb..579bbf9 100644
--- a/_layouts/home.html
+++ b/_layouts/home.html
@@ -10,6 +10,72 @@
   <link href="https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=DM+Mono:wght@400;500&display=swap" rel="stylesheet">
   <link rel="stylesheet" href="{{ site.baseurl }}/assets/css/base.css">
   {% if page.page_css %}<link rel="stylesheet" href="{{ site.baseurl }}/assets/css/{{ page.page_css }}.css">{% endif %}
+  <script type="application/ld+json">
+  {
+    "@context": "https://schema.org",
+    "@type": "Event",
+    "name": "Gerrit User Summit 2026",
+    "alternateName": "GUS26",
+    "description": "The Gerrit User Summit brings Gerrit admins, developers, practitioners and the wider community together for two days of talks, workshops and networking on the Google Sunnyvale campus. GUS26 also includes a co-hosted JJ Mini Summit with the Jujutsu (JJ) version control community.",
+    "startDate": "2026-11-09T09:00:00-08:00",
+    "endDate": "2026-11-10T17:00:00-08:00",
+    "eventAttendanceMode": "https://schema.org/OfflineEventAttendanceMode",
+    "eventStatus": "https://schema.org/EventScheduled",
+    "url": "{{ site.url }}/",
+    "location": {
+      "@type": "Place",
+      "name": "Google Building MP6, Sunnyvale",
+      "address": {
+        "@type": "PostalAddress",
+        "streetAddress": "1195 Borregas Ave",
+        "addressLocality": "Sunnyvale",
+        "addressRegion": "CA",
+        "postalCode": "94089",
+        "addressCountry": "US"
+      }
+    },
+    "organizer": {
+      "@type": "Organization",
+      "name": "GerritForge",
+      "url": "https://www.gerritforge.com"
+    },
+    "offers": {
+      "@type": "Offer",
+      "name": "Free registration",
+      "price": "0",
+      "priceCurrency": "USD",
+      "availability": "https://schema.org/InStock",
+      "url": "{{ site.luma_url }}",
+      "validFrom": "2026-07-01"
+    },
+    "subEvent": {
+      "@type": "Event",
+      "name": "JJ Mini Summit",
+      "description": "A mini summit co-hosted with the Jujutsu (JJ) version control community, featuring talks dedicated to JJ, held as part of the Gerrit User Summit 2026.",
+      "startDate": "2026-11-09T09:00:00-08:00",
+      "endDate": "2026-11-10T17:00:00-08:00",
+      "eventAttendanceMode": "https://schema.org/OfflineEventAttendanceMode",
+      "eventStatus": "https://schema.org/EventScheduled",
+      "location": {
+        "@type": "Place",
+        "name": "Google Building MP6, Sunnyvale",
+        "address": {
+          "@type": "PostalAddress",
+          "streetAddress": "1195 Borregas Ave",
+          "addressLocality": "Sunnyvale",
+          "addressRegion": "CA",
+          "postalCode": "94089",
+          "addressCountry": "US"
+        }
+      },
+      "organizer": {
+        "@type": "Organization",
+        "name": "GerritForge",
+        "url": "https://www.gerritforge.com"
+      }
+    }
+  }
+  </script>
   <style>
     /* ===== NAV ===== */
     #main-nav {