Add hint for renaming wikis/artists

app/views/artists/_form.html.erb

@@ -1,10 +1,15 @@
 <%= simple_form_for(@artist) do |f| %>
   <div class="input">
     <label for="artist_name">Name</label>
-    <% if @artist.new_record? || CurrentUser.user.is_builder? %>
+    <% if @artist.new_record? %>
       <%= text_field "artist", "name" %>
       [<%= link_to "check", "#", :id => "check-name-link" %>]
       <span id="check-name-result"></span>
+    <% elsif CurrentUser.user.is_builder? %>
+      <%= text_field "artist", "name" %>
+      [<%= link_to "check", "#", :id => "check-name-link" %>]
+      <span id="check-name-result"></span>
+      <span class="hint">Change to rename this artist entry and its wiki page</span>
     <% else %>
       <p><%= @artist.name %></p>
     <% end %>