render_markdown filter

docs/_plugins/custom_filters.rb

@@ -68,6 +68,16 @@ module CustomFilters
     end
   end
 
+  def render_markdown(input)
+    if input
+      res = input
+      res = res.gsub(/`(.*?)`/, '<code>\1</code>')
+      res = res.gsub(/\*\*(.*?)\*\*/, '<b>\1</b>')
+      res = res.gsub(/\*(.*?)\*/, '<i>\1</i>')
+      res.gsub(/\[(.*?)\]\((.*?)\)/, '<a href="\2">\1</a>')
+    end
+  end
+
 
   private