<div class="navBar">
  <h1 class="title"><a href="/">Mathio Party</a></h1>
  <div class="login">
    <% if current_user %>
    	<%= link_to "Logout, #{current_user.username}", destroy_user_session_path, method: :delete %> 
    	<% if !player2_logged_in? %>
    		<%= link_to 'Player 2 Login', players_new_path %>
    	<% else %>
    		<%= link_to "Logout, #{current_player2.username}", players_logout_path, method: :delete %>	
    	<% end %>
    <% else %>
    	<%= link_to 'Login', new_user_session_path %>
      <%= link_to 'Sign Up', new_user_registration_path  %>
    <% end %>
  </div>
</div>

<div class="navBar">
  <h1 class="title"><a href="/">Mathio Party</a></h1>
  <div class="login">
    <% if current_user %>
    	<%= link_to "Logout, #{current_user.username}", destroy_user_session_path, method: :delete %> 
      <%= link_to 'Profile Page', user_path(current_user.id) %>
    	<% if !player2_logged_in? %>
    		<%= link_to 'Player 2 Login', players_new_path %>
    	<% else %>
    		<%= link_to "Logout, #{current_player2.username}", players_logout_path, method: :delete %>	
    	<% end %>
    <% else %>
    	<%= link_to 'Login', new_user_session_path %>
      <%= link_to 'Sign Up', new_user_registration_path  %>
    <% end %>
  </div>
</div>

Add user profile page link on navbar
Add user profile page link on navbar
