days: add Addresses table with map pins to every day file

Stays, stops and parking pullouts with coordinates from OpenStreetMap,
each linked to Google Maps. Plan lines keep only the map link on the
place name. README and itinerary mention the section.

Claude-Session: https://claude.ai/code/session_0143dpDbP48SioBZZJ4iTf5c

days/2026-09-21.md

@@ -21,3 +21,13 @@
 
 - Silicon Valley and the Golden Gate sunset moved to [Sep 20](2026-09-20.md)
 - **Monday:** some museums (incl. the de Young, Computer History Museum) are closed
+
+## Addresses
+
+| Place | Address | Map |
+|---|---|---|
+| Airbnb — Daly City | 798 Hillside Blvd, Daly City, CA 94014 · host Stanley +1 415-425-9339 | [37.69314, -122.46185](https://www.google.com/maps/search/?api=1&query=37.69314,-122.46185) |
+| Twin Peaks | Christmas Tree Point | [search](https://www.google.com/maps/search/?api=1&query=Christmas+Tree+Point+San+Francisco) |
+| Painted Ladies | Alamo Square | [search](https://www.google.com/maps/search/?api=1&query=Alamo+Square+San+Francisco) |
+| Lands End | Lands End Lookout lot | [search](https://www.google.com/maps/search/?api=1&query=Lands+End+Lookout+San+Francisco) |
+| Alcatraz ferry | Pier 33, The Embarcadero | [search](https://www.google.com/maps/search/?api=1&query=Pier+33+Alcatraz+Landing+San+Francisco) |