Update README

Author: nikdoof

README.md

@@ -14,8 +14,9 @@ An external-facing, FastAPI-based front-end for accessing some Leigh Hackspace d
 | `HACKSPACE_LOGO_URL`        | `https://raw.githubusercontent.com/leigh-hackspace/logos-graphics-assets/master/logo/rose_logo.svg`     | URL to the logo for the hackspace                              |
 | `HACKSPACE_WEBSITE_URL`     | `https://leighhack.org`                                                                                 | URL to the hackspace's website                                 |
 | `HACKSPACE_ADDRESS`         | `Leigh Hackspace, Unit 3.14, 3rd Floor, Leigh Spinners Mill, Park Lane, Leigh, WN7 2LB, United Kingdom` | Full address to the hackspace                                  |
-| `HACKSPACE_ADDRESS_LAT`     | `53.493012`                                                                                             | Latitude of the hackspace                                      |
-| `HACKSPACE_ADDRESS_LON`     | `-2.49301`                                                                                              | Longitude of the hackspace                                     |
+| `HACKSPACE_OSM_NODE`        | `4300807520`                                                                                            | OpenStreetMap Node ID for the Hackspace's location             |
+| `HACKSPACE_ADDRESS_LAT`     | `53.493497`                                                                                             | Latitude of the hackspace                                      |
+| `HACKSPACE_ADDRESS_LON`     | `-2.493479`                                                                                             | Longitude of the hackspace                                     |
 | `HACKSPACE_TIMEZONE`        | `Europe/London`                                                                                         | Timezone the hackspace is located in                           |
 | `HACKSPACE_OPEN_ENTITY`     | `binary_sensor.hackspace_open_multi`                                                                    | Entity ID of the Home Assistant device to indicate open status |
 | `HACKSPACE_PUBLIC_CALENDAR` | `calendar.public_events`                                                                                | The entity ID of the Home Assistant public calendar            |