Modified this helpful recipe from AgileAdam to be able to take a simple Drupal 8 taxonomy term reference field (field_ct_category), iterate through it and add links to the keyword pages, ex:
Topics: Energy, Immigration and Transportation
<dd class="keywords">
Topics: {%- for item in content.field_ct_category['#items'] -%}
{%- if loop.first -%}
<a href="{{ path('entity.taxonomy_term.canonical', {'taxonomy_term': item.entity.tid.value}) }}">{{- item.entity.name.value -}}</a>
{%- elseif loop.last -%}
and <a href="{{ path('entity.taxonomy_term.canonical', {'taxonomy_term': item.entity.tid.value}) }}">{{- item.entity.name.value -}}</a>
{%- else -%}
<a href="{{ path('entity.taxonomy_term.canonical', {'taxonomy_term': item.entity.tid.value}) }}">{{- ', ' ~ item.entity.name.value -}}</a>
{%- endif -%}
{%- endfor -%}
</dd>