feat: removes two bookmarks

content/bookmarks.yaml

@@ -2,18 +2,10 @@
   title: personal websites with a /now page
   url: https://nownownow.com/
 
-- date: 2025-04-18
-  title: accessible uk train timetables
-  url: https://traintimes.org.uk/
-
 - date: 2024-05-20
   title: game programming patterns
   url: https://gameprogrammingpatterns.com/contents.html
 
-- date: 2023-09-04
-  title: procedural map generation techniques
-  url: https://www.youtube.com/watch?v=TlLIOgWYVpI
-
 - date: 2023-09-04
   title: procedural level design in brogue and beyond
   url: https://www.youtube.com/watch?v=Uo9-IcHhq_w