Rewrite documentation navigation URLs when being run locally.

docs/_includes/layouts/main.njk

@@ -11,7 +11,7 @@ headerClass: elv-header-default
             {% set navPages = collections.all | eleventyNavigation %}
             {% macro renderNavListItem(entry) -%}
             <li{% if entry.url == page.url %} class="elv-toc-active"{% endif %}>
-              <a {% if entry.url %}href="https://torsion.org/borgmatic/docs{{ entry.url | url }}"{% endif %}>{{ entry.title }}</a>
+              <a {% if entry.url %}href="{% if borgmatic.environment == "production" %}https://torsion.org/borgmatic/docs{% else %}http://localhost:8080/docs{% endif %}{{ entry.url | url }}"{% endif %}>{{ entry.title }}</a>
             {%- if entry.children.length -%}
               <ul>
                 {%- for child in entry.children %}{{ renderNavListItem(child) }}{% endfor -%}