add cool icon and attribution text

lib/pokemon_couture_web/templates/layout/root.html.leex

@@ -22,7 +22,7 @@
           <%= render "_user_menu.html", assigns %>
         </nav>
         <a href="<%= Routes.page_path(@conn, :index) %>" class="phx-logo"> <!-- TODO: needs a way to show the proper link -->
-          <img src="<%= Routes.static_path(@conn, "/images/phoenix.png") %>" alt="Phoenix Framework Logo"/>
+          <img src="<%= Routes.static_path(@conn, "/images/pikachu.png") %>" alt="Phoenix Framework Logo"/>
         </a>
       </section>
     </header>

lib/pokemon_couture_web/templates/page/index.html.eex

@@ -28,3 +28,8 @@
     </ul>
   </article>
 </section>
+
+<section class="phx-attributions">
+  <h2> Attributions </h2>
+  <p>Top icon is a pikachu by WEBTECHOPS LLP from the Noun Project.</p>
+</section>