docs: add reason for yanking v1.3.0

CHANGELOG.md

@@ -4,31 +4,9 @@ The format is based on [Keep a Changelog].
 
 [Keep a Changelog]: http://keepachangelog.com/en/1.0.0/
 
-## [v1.3.0] - 2023-12-15
+## [v1.3.0] - 2023-12-15 [YANKED]
 
-The main changes of this release are as follows:
-- Change the binary name to `polkadot-staking-miner` to publish on crates.io.
-- Bump rust MSRV to 1.74
-- Change `submit_signed_solution` extrinsic to be mortal
-- A runtime upgrade bug was discovered and is fixed in this release.
-
-### Runtime upgrade bug fixed
-
-Recently, we noticed that it can be possible that the runtime upgrades won't 
-upgrade the metadata because the actual runtime upgrade is applied to the block 
-after `state_subscribeRuntimeVersion` emits an event. 
-
-For that reason, the polkadot-staking-miner now subscribes to `system().last_runtime_upgrade()` instead to fix that.
-
-### [Changed]
-- refactor: make solution extrinsic mortal ([#728](https://github.com/paritytech/staking-miner-v2/pull/728))
-- chore(deps): bump subxt, subxt-signer, scale-value ([#726](https://github.com/paritytech/staking-miner-v2/pull/726))
-- chore(deps): bump clap from 4.4.10 to 4.4.11 ([#721](https://github.com/paritytech/staking-miner-v2/pull/721))
-- chore(deps): bump tokio from 1.34.0 to 1.35.0 ([#724](https://github.com/paritytech/staking-miner-v2/pull/724))
-- chore(deps): bump once_cell from 1.18.0 to 1.19.0 ([#722](https://github.com/paritytech/staking-miner-v2/pull/722))
-- refactor: use `subxt-signer` to reduce the number of deps ([#720](https://github.com/paritytech/staking-miner-v2/pull/720))
-- chore(deps): bump clap from 4.4.8 to 4.4.10 ([#719](https://github.com/paritytech/staking-miner-v2/pull/719))
-- rename project to polkadot-staking-miner ([#717](https://github.com/paritytech/staking-miner-v2/pull/717))
+The change to subxt-signer was used incorrectly and the release was yanked.
 
 ## [v1.2.0] - 2023-11-23