Add .prettierignore because of setext headers

.prettierignore

@@ -0,0 +1,2 @@
+# Ignore index due to prettier removing setext headers
+*.index.md

content/0.index.md

@@ -73,9 +73,6 @@ We support syncing your progress, proxies and bookmarks across devices, so you c
   Modular by design
   #description
   Mix and match different parts of the movie-web service, [host your backend](4.backend/1.deploy.md) or use ours, it'll work either way.
-
-##
-
   ::
   ::card{icon="mdi:flag"}
   #title
@@ -95,3 +92,4 @@ PWA Support
   #description
   Supports PWA, so you can install it on your phone and use it just like a native app.
   ::
+::