wraps article title parts in span

layouts/partials/article-title.html

@@ -1,3 +1,3 @@
 {{- if and .Params.narrator .Params.subject -}}
-    {{- .Params.narrator }}: {{ .Params.subject -}}
+    <span class="artile__title-narrator font-iosevka">{{- .Params.narrator }}</span>: <span class="artile__title-subject">{{ .Params.subject -}}</span>
 {{- end -}}