change terms from txt to markdown

app/helpers/application_helper.rb

@@ -25,7 +25,22 @@ module ApplicationHelper
     Rails.configuration.allow_user_signup
   end
 
+  # Determines if the BigBlueButton endpoint is the default.
   def bigbluebutton_endpoint_default?
     Rails.configuration.bigbluebutton_endpoint_default == Rails.configuration.bigbluebutton_endpoint
   end
+
+  # Parses markdown for rendering.
+  def markdown(text)
+    markdown = Redcarpet::Markdown.new(Redcarpet::Render::HTML,
+      no_intra_emphasis: true,
+      fenced_code_blocks: true,
+      disable_indented_code_blocks: true,
+      autolink: true,
+      tables: true,
+      underline: true,
+      highlight: true)
+
+    markdown.render(text).html_safe
+  end
 end