removed some unnecessary steps from the category_generator plugin to avoid confusion

plugins/category_generator.rb

@@ -8,32 +8,6 @@
 #
 # A generator that creates category pages for jekyll sites.
 #
-# To use it, simply drop this script into the _plugins directory of your Jekyll site. You should
-# also create a file called 'category_index.html' in the _layouts directory of your jekyll site
-# with the following contents (note: you should remove the leading '# ' characters):
-#
-# ================================== COPY BELOW THIS LINE ==================================
-# ---
-# layout: default
-# ---
-#
-# <h1 class="category">{{ page.title }}</h1>
-# <ul class="posts">
-# {% for post in site.categories[page.category] %}
-#     <div>{{ post.date | date_to_html_string }}</div>
-#     <h2><a href="{{ post.url }}">{{ post.title }}</a></h2>
-#     <div class="categories">Filed under {{ post.categories | category_links }}</div>
-# {% endfor %}
-# </ul>
-# ================================== COPY ABOVE THIS LINE ==================================
-#
-# You can alter the _layout_ setting if you wish to use an alternate layout, and obviously you
-# can change the HTML above as you see fit.
-#
-# When you compile your jekyll site, this plugin will loop through the list of categories in your
-# site, and use the layout above to generate a page for each one with a list of links to the
-# individual posts.
-#
 # Included filters :
 # - category_links:      Outputs the list of categories as comma-separated <a> links.
 # - date_to_html_string: Outputs the post.date as formatted html, with hooks for CSS styling.