Added the frozen-plugins files

Closes #1 (closed)

_plugins/rblock.rb

+module Jekyll
+    module Tags
+      class RblockTag < Liquid::Block
+       
+        def split_params(params)
+            params.split("|").map(&:strip)
+        end
+
+        def initialize(tag_name, block_options, liquid_options)
+            super
+            args = split_params(block_options)
+            @title = args[0]
+            if args.length >1
+                @icon = args[1]
+            else
+                #default icon
+                @icon = "fas fa-code"
+            end
+        end
+  
+        def render(context)
+            rgridblockID = context["rgridblockID"]
+           
+            #content = super
+            site = context.registers[:site]
+            converter = site.find_converter_instance(::Jekyll::Converters::Markdown)
+            content = converter.convert(super)
+         
+
+       
+            #Because we’re not changing the context, there’s no need to push the context stack as with the rgridblock. 
+            # generate collapsible card HTML
+            output = <<~EOS
+<div class="rblock">
+    <h3>
+    <i class="#{@icon}"></i>
+    #{@title}
+    </h3>
+    <hr>
+    <p>
+    #{content}
+    </p>
+</div>
+    EOS
+             output
+        end
+      end
+    end
+  end
+  
+ 
+
+
+Liquid::Template.register_tag('rblock', Jekyll::Tags::RblockTag)