build: bump yell from 2.2.1 to 2.2.2 in /docs
build: bump yell from 2.2.1 to 2.2.2 in /docs

Bumps [yell](https://github.com/rudionrails/yell) from 2.2.1 to 2.2.2.
- [Release notes](https://github.com/rudionrails/yell/releases)
- [Commits](https://github.com/rudionrails/yell/commits)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
claui/brew,konqui/brew,vitorgalvao/brew,Homebrew/brew,reitermarkus/brew,JCount/brew,sjackman/homebrew,EricFromCanada/brew,reitermarkus/brew,vitorgalvao/brew,Homebrew/brew,nandub/brew,Homebrew/brew,mahori/brew,MikeMcQuaid/brew,vitorgalvao/brew,sjackman/homebrew,JCount/brew,claui/brew,EricFromCanada/brew,claui/brew,MikeMcQuaid/brew,konqui/brew,mahori/brew,reitermarkus/brew,EricFromCanada/brew,konqui/brew,vitorgalvao/brew,mahori/brew,mahori/brew,sjackman/homebrew,JCount/brew,claui/brew,sjackman/homebrew,konqui/brew,JCount/brew,nandub/brew,nandub/brew,nandub/brew,MikeMcQuaid/brew,MikeMcQuaid/brew,reitermarkus/brew,Homebrew/brew,EricFromCanada/brew