zroger/jekyll-categories — pull request #1 by andruby (2013-09-05 12:57:24+00:00)
Title: Fix categories with spaces as the context[@category] also needs converting

When using this code, the category url did not replace spaces with dashes. The added parentheses in this pull request resolved the issue.

```html
{% for category in site.categories %}
{{ category.first }}
{% endfor %}
```