disable ToC if frontmatter has "enableToc: false"

layouts/_default/single.html

@@ -22,7 +22,7 @@
           <li><a href="{{ .Permalink }}">{{ .LinkTitle | humanize }}</a></li>
           {{ end }}
       </ul>
-      {{ if (and $.Site.Data.config.enableToc (not (.Params.disableToc))) }}
+      {{ if (and $.Site.Data.config.enableToc (ne .Params.enableToc false)) }}
       <aside class="mainTOC">
           <h3>Table of Contents</h3>
           {{ .TableOfContents }}