do not hardcode site url

Author: hauner

src/layouts/404.hbs

@@ -11,14 +11,8 @@
       <div class="relative h-16 border-b m-0 px-4 max-w-screen-xl mx-auto flex items-center justify-between">
         <img src="{{{uiRootPath}}}/img/openapi-processor-p.svg" alt="logo" class="oap-logo">
         <div class="text-2xl ml-16">
-          <a href="https://docs.openapiprocessor.io" class="ml-4 hover:text-gray-600">openapi-processor</a>
+          <a href="{{{uiRootPath}}}" class="ml-4 hover:text-gray-600">openapi-processor</a>
         </div>
-
-<!--        <div class="text-2xl">-->
-<!--          <a href="https://playground.openapiprocessor.io" target="_blank" class="hover:text-gray-600">-->
-<!--            <i class="far fa-play-circle mr-1"></i>playground-->
-<!--          </a>-->
-<!--        </div>-->
       </div>
 
     </header>