Added a tag-cloud.

New features

  • Added tag cloud to the layout.

    • Generates a page (for each tag) containing a list of all posts with this tag (using the file _layouts/page-tag.html)

    • use site.tag_dir in _config.yml to set the directory in which the files for each tag are created (default: tags)

    • use site.tag_title_prefix in _config.yml to set the prefix to be used for the title of the tag-pages (default: Tag: )