Add FOST link

Author: martinbonnin

src/app/day/2026/components/about-section.tsx

@@ -9,9 +9,10 @@ export function AboutSection({ children }: { children?: ReactNode }) {
           {children || (
             <>
               <p className="typography-body-lg">
-                GraphQL Day is a one-day community event hosted at FOST (Future
-                of Software Technologies). Expect real-world talks, workshops,
-                and conversations about building with GraphQL.
+                GraphQL Day is a one-day community event hosted at{" "}
+                <a href="https://www.joinfost.io" className="underline hover:text-neu-900">FOST</a>{" "}
+                (Future of Software Technologies). Expect real-world talks,
+                workshops, and conversations about building with GraphQL.
               </p>
               <p className="typography-body-lg text-pretty">
                 The event is open to everyone — whether you run GraphQL in