#543, Add summary param for section shortcode

exampleSite/content.en/docs/shortcodes/section/_index.md

@@ -4,12 +4,12 @@ bookCollapseSection: true
 
 # Section
 
-Section renders pages in section as definition list, using title and description.
+Section renders pages in section as definition list, using title and description. Optional param `summary` can be used to show or hide page summary
 
 ## Example
 
 ```tpl
-{{</* section */>}}
+{{</* section [summary] */>}}
 ```
 
-{{<section>}}
+{{<section summary >}}

layouts/shortcodes/section.html

@@ -3,8 +3,10 @@
   <dt>
     <a href="{{ .RelPermalink }}">{{ partial "docs/title" . }}</a>
   </dt>
+  {{ if (in $.Params "summary") -}}
   <dd class="markdown-inner">
     {{ default .Summary .Description }}
   </dd>
+  {{ end -}}
 {{ end }}
 </dl>