Updated name for deploy action and url for docs from not found

.github/workflows/deploy.yml

@@ -1,4 +1,4 @@
-name: Deploy image to Docker Hub and pull it
+name: Deploy image to server, build and run
 
 on:
   push:

src/resources/static/not-found.html

@@ -54,7 +54,7 @@
 <div class="container">
     <h1>404</h1>
     <p>Oops! Page not found.</p>
-    <a href="/openapi">Go back to the documentation</a>
+    <a href="http://localhost:8000/openapi">Go back to the documentation</a>
 </div>
 </body>
 </html>