Update layout.html

Author: papadanku

doc/_themes/sphinx13/layout.html

@@ -14,7 +14,7 @@
   <div class="brand">
     <a href="{{ pathto(root_doc)|e }}">
       <img src="{{ pathto('_static/sphinx-logo.svg', resource=True) }}" alt="logo" />
-      <span>Sphinx</span>
+      <span>A Shaderboy Collection</span>
     </a>
   </div>
   <div class="icons">