Update CHANGELOG.md

CHANGELOG.md

@@ -18,7 +18,8 @@ The main changes of this release are as follows:
 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 staking-miner now subscribes to `system().last_runtime_upgrade()` instead to fix that.
+
+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))