Render "term" content if it exists; add a Posts header between the content and post list

layouts/_default/term.html

@@ -7,6 +7,18 @@
   <h1>{{ .Title }}</h1>
 </header>
 
+{{- $hasContent := false -}}
+{{ with .Content }}
+  {{- $hasContent = true -}}
+  <section>
+  {{ . }}
+  </section>
+{{ end }}
+
+{{ if $hasContent }}
+<h2>Posts</h2>
+{{ end }}
+
 <ul>
 {{- range .Pages -}}
   <li><a href="{{ .RelPermalink }}">{{ .Title }}</a></li>