app/views/devise/shared/_links.html.erb
<div class="col-sm-12">
<%- if controller_name != 'sessions' %>
<%= link_to "Log in", new_user_session_path %><br />
<% end -%>
<%- if devise_mapping.registerable? && controller_name != 'registrations' %>
<%= link_to "Sign up", new_registration_path(resource_name) %><br />
<% end -%>
<%- if devise_mapping.recoverable? && controller_name != 'passwords' && controller_name != 'registrations' %>
<%= link_to "Forgot your password?", new_password_path(resource_name) %><br />
<% end -%>
<%- if devise_mapping.confirmable? && controller_name != 'confirmations' %>
<%= link_to "Didn't receive confirmation instructions?", new_confirmation_path(resource_name) %><br />
<% end -%>
<%- if devise_mapping.lockable? && resource_class.unlock_strategy_enabled?(:email) && controller_name != 'unlocks' %>
<%= link_to "Didn't receive unlock instructions?", new_unlock_path(resource_name) %><br />
<% end -%>
<hr />
<%- if devise_mapping.omniauthable? %>
<%= link_to user_twitter_omniauth_authorize_path, method: :post, class: "btn btn-twitter" do %>
<i class="icon-twitter"></i>
<span class="btn-text-middle">Sign in with Twitter</span>
<% end %>
<%= link_to user_github_omniauth_authorize_path, method: :post, class: "btn btn-github" do %>
<i class="icon-github"></i>
<span class="btn-text-middle">Sign in with GitHub</span>
<% end %>
<% end %>
</div>