runbooks: Add note to run the system config upgrade after holocene ac…

…tivates.

runbooks/1.8.0-permissioned-to-permissionless.md

@@ -209,10 +209,10 @@ A template is provided to generate the required upgrade task.
 
    Where:
 
-- `l1-chain` is the L1 chain name (either `sepolia` or `mainnet`)
-- `l2-chain` is the L2 chain name (e.g. `op`, `base`, `unichain` etc)
-- `FaultDisputeGameAddress` is the address of the new `FaultDisputeGame`
-  contract [deployed above](https://www.notion.so/PUBLIC-DRAFT-Upgrade-Runbook-Enabling-permissionless-fault-proofs-on-op-contracts-v1-8-0-11ef153ee16280f299bef3f0c2837e94?pvs=21).
+   - `l1-chain` is the L1 chain name (either `sepolia` or `mainnet`)
+   - `l2-chain` is the L2 chain name (e.g. `op`, `base`, `unichain` etc)
+   - `FaultDisputeGameAddress` is the address of the new `FaultDisputeGame`
+     contract [deployed above](https://www.notion.so/PUBLIC-DRAFT-Upgrade-Runbook-Enabling-permissionless-fault-proofs-on-op-contracts-v1-8-0-11ef153ee16280f299bef3f0c2837e94?pvs=21).
 
 4. Copy the generated task generated in the directory `out` to the appropriate directory for the chain. e.g.
    `cp -rf out ../../../tasks/eth/unichain-001-permissionless-proofs`
@@ -300,3 +300,8 @@ to call `setRespectedGameType` that can be used as a guide for creating the task
 Configure `op-proposer` to create proposals using the permissionless `cannon` game type instead of permissioned games.
 
 - Change the `--game-type` (env var `OP_PROPOSER_GAME_TYPE`) to 0.
+
+# Activate System Config Upgrade
+
+If upgrading from `op-contracts/v1.6.0`, after Holocene has activated, execute the system config upgrade transaction
+generated by the Holocene deployment tool.