Upgrade polkadot to v0.9.12
Remove unneeded step for contracts in README
- manual merge of develop
- Merge remote-tracking branch 'origin/develop' into feature/polkadot-v0.9.12
- build upgrade polkadot to v0.9.12
pallets/evm-transaction-payment/src/lib.rs2.7 KiBsourcehistoryUpgrade polkadot to v0.9.12
Remove unneeded step for contracts in README