Add example with taxonomy for title template func

Example URL with printf.

content/functions/title.md

@@ -23,3 +23,11 @@ aliases: []
 ```
 {{title "BatMan"}}` → "Batman"
 ```
+
+Can be combined in pipes. In the following snippet, the link text is cleaned up using `humanize` to remove dashes and `title` to convert the value of `$name` to Intial Caps.
+
+```
+{{ range $name, $items := .Site.Taxonomies.categories }}
+    <li><a href="{{ printf "%s/%s" "categories" ($name | urlize | lower) | absURL }}">{{ $name | humanize | title }} ({{ len $items }})</a></li>
+{{ end }}
+```