<h1>
  <% if @user_recipes %>
    Recipes by <%= @user_name %>
  <% elsif @updated_after %>
    Recipes updated after <%= @date %>
  <% else %>
    Recipes
  <% end %>
</h1>
<%= render partial: "recipes/recipes", locals: {recipes: @recipes} %>

<h1>Recipes
  <%= 'by '            + @user_name if @user_recipes %>
  <%= 'updated after ' + @date      if @updated_after %>
</h1>
<%= render partial: "recipes/recipes", locals: {recipes: @recipes} %>

Clean up index page's <h1> logic.
Clean up index page's <h1> logic.
