docs: monorepo guide

[jjangga0214]

• Configs Per Package vs Single Root Config
• Running multiple commands in parallel
  • shouldRun()
    • Invoking commands by detecting change
• Use cases
  • Incremental type checking: Resolving slow type checking in large monorepo with separate tsconfig of each package: https://github.com/Rugvip/ts-build-bench#type-checking
  • Incremental Linting: https://typescript-eslint.io/linting/typed-linting/monorepos/#important-note-regarding-large--10-multi-package-monorepos