Merge pull request #2300 from kzykbys/myPluginDescription

site/docs/plugins.md

@@ -462,6 +462,7 @@ You can find a few useful plugins at the following locations:
 - [Table of Content Generator](https://github.com/dafi/jekyll-toc-generator): Generate the HTML code containing a table of content (TOC), the TOC can be customized in many way, for example you can decide which pages can be without TOC.
 - [jekyll-humanize](https://github.com/23maverick23/jekyll-humanize): This is a port of the Django app humanize which adds a "human touch" to data. Each method represents a Fluid type filter that can be used in your Jekyll site templates. Given that Jekyll produces static sites, some of the original methods do not make logical sense to port (e.g. naturaltime).
 - [Jekyll-Ordinal](https://github.com/PatrickC8t/Jekyll-Ordinal): Jekyll liquid filter to output a date ordinal such as "st", "nd", "rd", or "th".
+- [Deprecated articles keeper](https://github.com/kzykbys/JekyllPlugins) by [Kazuya Kobayashi](http://blog.kazuya.co/): A simple Jekyll filter which monitor how old an article is.
 
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