Fix relative linkages

Author: codegraphtheory

_includes/prev_next.html

@@ -7,11 +7,11 @@
     <nav class="pager">
       {% if prev_i >= 0 %}
         {% assign prev_page = chapters[prev_i] %}
-        <a class="prev" href="{{ prev_page.url }}">← {{ prev_page.title }}</a>
+        <a class="prev" href="{{ prev_page.url | relative_url }}">← {{ prev_page.title }}</a>
       {% endif %}
       {% if next_i < chapters.size %}
         {% assign next_page = chapters[next_i] %}
-        <a class="next" href="{{ next_page.url }}">{{ next_page.title }} →</a>
+        <a class="next" href="{{ next_page.url | relative_url }}">{{ next_page.title }} →</a>
       {% endif %}
     </nav>
   {% endif %}

_includes/sidebar.html

@@ -4,7 +4,7 @@ <h2>Table of Contents</h2>
     {% assign chapters = site.chapters | sort: 'order' %}
     {% for ch in chapters %}
       <li class="{% if ch.url == page.url %}active{% endif %}">
-        <a href="{{ ch.url }}">{{ ch.order }}. {{ ch.title }}</a>
+        <a href="{{ ch.url | relative_url }}">{{ ch.order }}. {{ ch.title }}</a>
       </li>
     {% endfor %}
   </ul>

index.md

@@ -23,7 +23,7 @@ Or jump to a chapter:
 
 {% assign chapters = site.chapters | sort: 'order' | limit: 5 %}
 {% for ch in chapters %}
-- [{{ ch.order }}. {{ ch.title }}]({{ ch.url }})
+- [{{ ch.order }}. {{ ch.title }}]({{ ch.url | relative_url }})
 {% endfor %}
 
 [View all chapters →]({{ "/book" | relative_url }})

pages/book.md

@@ -9,7 +9,7 @@ Welcome to the complete guide to graph databases. This book covers everything fr
 
 {% assign chapters = site.chapters | sort: 'order' %}
 {% for ch in chapters %}
-{{ ch.order }}. [{{ ch.title }}]({{ ch.url }})
+{{ ch.order }}. [{{ ch.title }}]({{ ch.url | relative_url }})
 {% endfor %}
 
 ## About This Book