Upgrade polkadot to v0.9.12
Remove unneeded step for contracts in README
- manual merge of develop
Enforce codestyle
- Merge remote-tracking branch 'origin/develop' into feature/polkadot-v0.9.12
difftreelog
commits
pallets/inflation/srchistorypallets/inflation/srchistoryUpgrade polkadot to v0.9.12
Remove unneeded step for contracts in README
Enforce codestyle