discourse/app/views/user_notifications/digest.text.erb

<%- site_link = raw(@markdown_linker.create(@site_name, '/')) %>
<%= raw(t 'user_notifications.digest.why',
      site_link: site_link,
      last_seen_at: @last_seen_at) %>

<%- if @new_topics.present? %>
### <%=t 'user_notifications.digest.top_topics' %>

<%- @new_topics.each do |t| %>
<%= raw(@markdown_linker.create(t.title, t.relative_url)) %>

<%- if t.best_post.present? %>
 <div class='digest-post'><%= raw(t.best_post.excerpt(1000,
                            strip_links: true,
                            text_entities: true,
                            markdown_images: true)) %></div>

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<%- end %>

<%- end %>
<%- end %>

<%= raw(@markdown_linker.references) %>

<%=raw(t :'user_notifications.digest.unsubscribe',
     site_link: site_link,
     unsubscribe_link: raw(@markdown_linker.create(t('user_notifications.digest.click_here'), email_unsubscribe_path(key: @user.temporary_key))))  %>

<%= raw(@markdown_linker.references) %>