Add the first licensed Hollywood reference board

docs/screens/refs/README.md

@@ -17,28 +17,38 @@ photo wins and the concept only informs palette and atmosphere.
 docs/screens/refs/
   README.md                 # this file
   SIDECAR-TEMPLATE.md       # copy per folder
-  hollywood/                # 6840 Hollywood Blvd block
-    SIDECAR.md
+  hollywood/                # 6840 Hollywood Blvd block (first board, 2026-11-03)
+    README.md               # board overview and image gallery
+    SIDECAR.md              # provenance table
     *.jpg|png
   joke-shop/                # 8433 Sunset Blvd block
+    README.md
     SIDECAR.md
   tv-studio/                # studio entrance reference set
+    README.md
     SIDECAR.md
   blocks/<block-id>/        # local map-development blocks (TODO: Local map development)
+    README.md
     SIDECAR.md
 ```
 
-One folder per venue or block, one `SIDECAR.md` per folder listing **every** image in it. Keep the
-folders flat; do not add sub-collections that the sidecar cannot describe.
+One folder per venue or block with a `README.md` (the board: what each image is evidence for) and a
+`SIDECAR.md` listing **every** image in it. `tools/check_docs.py` requires each tracked image to be
+linked from the folder README, so the gallery and the sidecar stay in step. Keep the folders flat;
+do not add sub-collections that the sidecar cannot describe.
 
 ## Naming
 
 ```
-<subject>-<view>-<source>-<YYYYMMDD>.<ext>
-el-capitan-entrance-day-wikimedia-20231102.jpg
-sunset-canopy-building-standard-ownphoto-20251103.jpg
+<subject>-<view>-<source>-<ISO date>.<ext>
+el-capitan-facade-day-wikimedia-2009-10-27.jpg
+sunset-canopy-night-ownphoto-2025-11-03.jpg
 ```
 
+Use the full `YYYY-MM-DD` date when known; `YYYY-MM` or `YYYY` is acceptable for historical photos
+where only that much is recorded (e.g. `masonic-temple-historic-pd-1922.jpg`). The sidecar always
+carries the original capture date as precisely as the source states it.
+
 Use lowercase words separated by hyphens, the camera view (`day`, `night`, `entrance`, `profile`,
 `across-street`), the source (`wikimedia`, `ownphoto`, `mapillary`), and the capture or download
 date. Never overwrite an existing file; add a new dated file instead