Update v1.12 upgrade proposal

Author: assafmo

docs/proposals/v1.12.md

@@ -1,8 +1,8 @@
 # Secret Network v1.12 Upgrade
 
-This proposal recommends that the chain undergo a software upgrade to version v1.12 of the Secret Network codebase on secret-4 block TODO. The estimated time for the upgrade is **Tuesday, October 17, 2023, at ~2pm UTC**.
+This proposal recommends that the chain undergo a software upgrade to version v1.12 of the Secret Network codebase on secret-4 block 11,136,666. The estimated time for the upgrade is **Tuesday, October 17, 2023, at ~2pm UTC**.
 
-Since block times can vary significantly, we advise monitoring the chain for a more precise upgrade time. ETA monitor: [mintscan.io](https://dev.mintscan.io/secret/blocks/TODO) or [ping.pub](https://ping.pub/secret/block/TODO).
+Since block times can vary significantly, we advise monitoring the chain for a more precise upgrade time. ETA monitor: [mintscan.io](https://dev.mintscan.io/secret/blocks/11136666) or [ping.pub](https://ping.pub/secret/block/11136666).
 
 ## Upgrade Highlights