Commented + small refactor of Tag class
Commented + small refactor of Tag class

Just little improvements for readability and documentation, in the
spirit of #71.

tecknojock/jekyll-rp_logs,tecknojock/jekyll-rp_logs,xiagu/jekyll-rp_logs,xiagu/jekyll-rp_logs,tecknojock/jekyll-rp_logs,xiagu/jekyll-rp_logs,tecknojock/jekyll-rp_logs,xiagu/jekyll-rp_logs