Fix Paging

Author: rcosta358

_includes/footer_custom.html

@@ -22,6 +22,7 @@
 {%- if current_index >= 0 -%}
   {%- assign previous_page = nil -%}
   {%- assign next_page = nil -%}
+  {%- assign current_children = nav_pages | where: "parent", page.title | sort_natural: "title" | sort: "nav_order" -%}
 
   {%- if current_index > 0 -%}
     {%- assign previous_index = current_index | minus: 1 -%}
@@ -35,6 +36,10 @@
     {%- assign next_page = pager_pages[next_index] -%}
   {%- endif -%}
 
+  {%- if page.has_children and current_children.size > 0 -%}
+    {%- assign next_page = current_children.first -%}
+  {%- endif -%}
+
   {%- if previous_page or next_page -%}
     <nav class="page-nav" aria-label="Page navigation">
       {%- if previous_page -%}