hikari seems abandoned (#117)

Fixes #116 

2 dead sites and 2 year without activity
https://github.com/antaz/hikari

Update niri repo

Author: Marzal

layouts/index.html

@@ -315,12 +315,11 @@ <h2 class="title--answer">Yes, we are <a href="https://wayland.freedesktop.org/"
       </li>
       <li class="list__item--ok">
         Scrolling compositor:
-        <a href="https://github.com/YaLTeR/niri/">niri</a>,
+        <a href="https://github.com/niri-wm/niri">niri</a>,
         <a href="https://github.com/dawsers/scroll">scroll</a>
       </li>
       <li class="list__item--ok">
         Stacking compositor:
-        <a href="https://hub.darcs.net/raichoo/hikari">hikari</a>,
         <a href="https://labwc.github.io/">labwc</a>,
         <a href="https://github.com/lirios/shell">Liri shell</a>
       </li>
@@ -373,7 +372,7 @@ <h2 class="title--answer">Yes, we are <a href="https://wayland.freedesktop.org/"
         <a href="https://hyprland.org">Hyprland</a>,
         <a href="https://github.com/mahkoh/jay">Jay</a>,
         <a href="https://github.com/miracle-wm-org/miracle-wm">miracle-wm</a>,
-        <a href="https://github.com/YaLTeR/niri">niri</a>,
+        <a href="https://github.com/niri-wm/niri">niri</a>,
         <a href="https://github.com/pinnacle-comp/pinnacle">Pinnacle</a>,
         <a href="https://qtile.org">Qtile</a>,
         <a href="https://github.com/riverwm/river">river</a>,