Extend the Hollywood board with terrazzo, neighbour and night context

CREDITS.md

@@ -61,6 +61,13 @@ their folder sidecar:
 - `docs/screens/refs/joke-shop/comedy-store-signature-band-day-wikimedia-2020-04-09.jpg` — Tony
   Mariotti, CC BY 2.0, via Wikimedia Commons (<https://www.rubyhome.com/> as requested).
 - Public-domain files in the Joke Shop folder: Gary Minnaert (2006).
+- `docs/screens/refs/hollywood/el-capitan-theatre-marquee-neighbour-day-wikimedia-2009-07-11.jpg` —
+  Alan Light, CC BY 2.0, via Wikimedia Commons.
+- `docs/screens/refs/hollywood/hollywood-boulevard-night-context-ccbysa.jpg` — Downtowngal,
+  CC BY-SA 3.0, via Wikimedia Commons; used unmodified for colour/lighting study only, no derivative
+  asset is made from it.
+- CC0 files in the Hollywood folder need no attribution: Luijtenphotos (2019) and Benoît Prieur
+  (2022).
 
 ## AI-assisted images