feat(11ty): link sub terms in table of content

11ty/_includes/components/table-of-content-item.njk

@@ -9,7 +9,9 @@
   {%- if definition.data.sub_terms -%}
     <ul class="sub-terms">
       {% for term in definition.data.sub_terms %}
-        <li class="subterm">{{ term.text }}
+        <li
+          class="subterm"
+        >{{ term | linkSubTermIfDefined(collections.definedWords) | safe }}</li>
       {% endfor %}
     </ul>
   {% endif %}