use category title in tags that support it

theme/templates/macros/renderers.html

@@ -44,7 +44,13 @@
 	{%- call(nativetag, sccat, tagarticles) get.tag_by_name(s.tag) -%}
 	{%- if s.title is not defined -%}
 		<header>
-			<h2 {% if s.id is defined -%}id="{{ s.id }}"{%- endif %}>{{ s.tag|e }}</h2>
+			<h2 {% if s.id is defined -%}id="{{ s.id }}"{%- endif %}>
+				{%- if sccat -%}
+					{{- sccat[lang]|e -}}
+				{%- else -%}
+					{{- s.tag|e -}}
+				{%- endif -%}
+			</h2>
 		</header>
 	{%- endif -%}
 	{{ cards.open() }}