Update home of iMarina User Guide

Author: fernandonobel

_posts/iMarina/User-Guide/2025-07-08-User-guide.md

@@ -9,3 +9,11 @@ parent: iMarina
 
 # iMarina-load (User guide)
 
+  - [Tutorial](/iMarina/User-Guide/Tutorial)  
+    If it is your first time using this automatization, do this tutorial.
+  
+  - [How-to guide](/iMarina/User-Guide/How-To-Guide)  
+    It it is NOT your first time, follow this how-to guide to efficiently use the automatization.
+  
+  - [Reference](/iMarina/User-Guide/Reference)  
+    Use this reference to quickly know the specifications of the form.