Update website index (#50)

Author: pnpavlov

web/index.md

@@ -15,9 +15,9 @@ hero:
   #     link: /api-examples
 
 features:
-  - title: "Stable release: 1877.10.0"
+  - title: "Stable release: 1877.13.0"
     details: "Download latest stable OS image.<br/> Includes:<br/> - Linux LTS Kernel: 6.12<br/> - Containerd: 2.1"
-    link: https://github.com/gardenlinux/gardenlinux/releases/tag/1877.10
+    link: https://github.com/gardenlinux/gardenlinux/releases/tag/1877.13
   - title: "Nightly release"
     details: "Download latest cutting-edge OS images.<br/> Includes:<br/> - Linux LTS Kernel: 6.18<br/> - Containerd: 2.2"
     link: https://github.com/gardenlinux/gardenlinux/actions/workflows/nightly.yml