adding tags to jekyll blog

post.html

    <ul class="tags">
      {% for tag in page.tags %}
        <li><a href="{{site.baseurl}}tags#{{tag}}" class="tag">{{ tag }}</a></li>
      {% endfor %}
    </ul>

tags.html

---
layout: page
title: tags
---

{% capture site_tags %}{% for tag in site.tags %}{{ tag | first }}{% unless forloop.last %},{% endunless %}{% endfor %}{% endcapture %}
{% assign tag_words = site_tags | split:',' | sort %}
<div id="tags">
  <h5> Tags in Blog</h5>

  <ul class="tags">
<!--  cycles through tag list and creates header row of all tags used in site with accompanying per-tag counts...-->
  {% for item in (0..site.tags.size) %}{% unless forloop.last %}
    {% capture this_word %}{{ tag_words[item] | strip_newlines }}{% endcapture %}
    <li ><a href="#{{ this_word | cgi_escape }}" class="tag">{{ this_word }} <span>({{ site.tags[this_word].size }})</span></a></li>
  {% endunless %}{% endfor %}
  </ul>
<!--cycles through tag list and creates subheader for each tag name...-->
  {% for item in (0..site.tags.size) %}{% unless forloop.last %}
    {% capture this_word %}{{ tag_words[item] | strip_newlines }}{% endcapture %}
  <h2 id="{{ this_word | cgi_escape }}">{{ this_word }}</h2>
<!--  lists all posts corresponding to specific tag...-->
    {% for post in site.tags[this_word] %}{% if post.title != null %}
    <div>
        <span><a href="{{ post.url }}">{{ post.title }}</a></span>
        <small><span>{{ post.date | date_to_string }}</span></small>
    </div>
    {% endif %}{% endfor %}
  {% endunless %}{% endfor %}
</div>