edit "log in"

app/views/users/sessions/new.html.erb

@@ -19,7 +19,7 @@
   <% end %>
 
   <div class="actions">
-    <%= f.submit "Login", class: "btn btn-primary" %>
+    <%= f.submit "Log in", class: "btn btn-primary" %>
   </div>
 <% end %>
 

app/views/users/shared/_links.html.erb

 <%- if controller_name != 'sessions' %>
-  <%= link_to "Login", new_session_path(resource_name) %><br />
+  <%= link_to "Log in", new_session_path(resource_name) %><br />
 <% end %>
 
 <%- if devise_mapping.registerable? && controller_name != "registrations" %>