Revert "add plugin to calc SRI hash; add CDN to 'Get Started' page"

This reverts commit d564996430c925daa1aefcdc8fd0ae244cac826d.

src/doc/_plugins/sri_hash.rb

@@ -1,20 +0,0 @@
-##
-# Generate an SRI hash for a given file
-
-require 'digest'
-
-module Jekyll
-	class GetSriHash < Liquid::Tag
-		def initialize(tag_name, text, tokens)
-			super
-			@filename = text
-		end
-
-		def render(context)
-			sha256 = Digest::SHA256.file '@filename'
-			"sha256-#{sha256.base64digest}"
-		end
-	end
-end
-
-Liquid::Template.register_tag('sri_hash', Jekyll::GetSriHash)

src/doc/get-started.html

@@ -69,21 +69,6 @@ relative_path: ../
     </div>
   </section>
 
-  <section class="get-started-CDN margin-top-lg" id="get-started-CDN">
-    <h2 class="page-header">Using {{ site.forkawesome.name }} with a CDN</h2>
-  </section>
-
-  <div class="row">
-    <div class="col-md-12">
-      <p>Thanks to <a href="https://www.jsdelivr.com">jsDelivr</a>, {{ site.forkawesome.name }} is available via a CDN as well.</p>
-      <p>
-{% highlight html %}
-<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/fork-awesome@{{ site.forkawesome.version }}/css/fork-awesome.min.css" integrity="{% sri_hash /css/fork-awesome.min.css %}" crossorigin="anonymous">
-{% endhighlight %}
-      </p>
-    </div>
-  </div>
-
   <section class="get-started-more margin-top-lg" id="get-started-more">
     <h2 class="page-header">More Information</h2>
   </section>