new Multiple sample section

_pkgdown.yml

@@ -74,8 +74,6 @@ navbar:
         menu:
         - text: Object creation
           href: articles/object_creation.html
-        - text: Object splitting and joining
-          href: articles/split_join.html
         - text: Create a simulated dataset object
           href: articles/create_simulated_object.html
       - text: -------
@@ -101,6 +99,13 @@ navbar:
           - text: Spatial domain analysis using HMRF
             href: articles/hmrf.html
       - text: -------
+      - text: Multiple samples
+        menu:
+        - text: Multi-sample with integration
+          href: articles/visium_prostate_integration.html
+        - text: Object splitting and joining
+          href: articles/split_join.html
+      - text: -------
       - text: Spatial manipulation
         menu:
           - text: Spatial transformations
@@ -310,12 +315,16 @@ articles:
   navbar: ~
   contents:
   - object_creation
-  - split_join
   - create_simulated_object
 - title: Giotto Configuration
   navbar: ~
   contents:
   - configuration
+- title: Multiple samples
+  navbar: ~
+  contents:
+  - visium_prostate_integration
+  - split_join
 - title: Try Giotto in the Cloud
   navbar: ~
   contents: