Use correct hexdocs link

Author: ukutaht

lib/prima_web/live/demo_live/sidebar.html.heex

@@ -13,7 +13,7 @@
   </.link>
 
   <.link
-    href="https://hexdocs.pm/"
+    href="https://hexdocs.pm/prima"
     class={[
       "group flex items-center px-3 py-2 text-sm font-medium rounded-md transition-colors text-gray-700 hover:bg-gray-100 hover:text-gray-900"
     ]}