discourse/app/views/users/show.html.erb

<h2><%= @user.username %></h2>

<p><%= raw @user.bio_cooked %></p>

<p><%= t 'powered_by_html' %></p>

<% content_for :head do %>
  <%= crawlable_meta_data(title: @user.username, description: @user.bio_summary, image: @user.small_avatar_url) %>
<% end %>