docs: add fourth image

Author: atinux

.docs/content/1.index.md

@@ -21,8 +21,9 @@ Pellentesque congue. Ut in risus volutpat libero pharetra tempor. Cras vestibulu
 ::gallery
 ---
 images:
-  - /alpine-0.png
+  - /alpine-1.png
   - /alpine-1.png
   - /alpine-2.png
+  - /alpine-0.png
 ---
 ::