nit: format

migrate/v0_27/migrate.md

@@ -31,7 +31,7 @@ Please reference the [RocksDB repository](https://github.com/facebook/rocksdb/tr
 
 Node operators using rocksdb are encouraged to [use `tcmalloc` as their memory allocator](https://github.com/Kava-Labs/kava/blob/v0.26.2-iavl-v1/migrate/v0_26/iavl-v1.md#default-memory-allocator).
 
-### On the day of the upgrade
+## On the day of the upgrade
 
 The kava chain is expected to halt at block height **12766500**. **Do not stop your node and begin the upgrade before the upgrade height**, or you may go offline and be unable to recover until after the upgrade!