Add a table of contents

Create a new table_of_contents partial that includes an auto-generated table of contents if the word
count is over 400 and the "toc" page variable has been set true.

layouts/_default/term.html

@@ -7,6 +7,8 @@
   <h1>{{ .Title }}</h1>
 </header>
 
+{{ partial "table_of_contents.html" . }}
+
 {{- $hasContent := false -}}
 {{ with .Content }}
   {{- $hasContent = true -}}

layouts/partials/photo_exif_table.html

@@ -49,7 +49,7 @@
           {{- $focalLength := .Tags.FocalLengthIn35mmFilm | default .Tags.FocalLength -}}
           {{- with $focalLength -}}{{ . }} mm{{- end -}}
         </td>
-        <td class="f-number">{{ with .Tags.FNumber }}ƒ{{ . }}{{ end }}</td>
+        <td class="f-number">{{ with .Tags.FNumber }}{{ printf "ƒ%0.1f" . }}{{ end }}</td>
         <td class="exposure-time">
           {{- with $exposureTime := .Tags.ExposureTime -}}
             {{- if in $exposureTime "/" -}}

layouts/partials/table_of_contents.html

@@ -0,0 +1,8 @@
+{{ if and (gt .WordCount 400) .Params.toc }}
+<aside>
+  <details open>
+    <summary>Table of Contents</summary>
+    {{ .TableOfContents }}
+  </details>
+</aside>
+{{ end }}