message: Add disclaimer for ignoring decorators
diff: @@ -33,6 +33,7 @@ ts-jest is a TypeScript preprocessor with source map support for Jest that lets
  - [Using `.babelrc`](#using-babelrc)
  - [Using a custom Babel config](#using-a-custom-babel-config)
  - [TS compiler & error reporting](#ts-compiler--error-reporting)
  + - [Ignore coverage on decorators](#ignore-coverage-on-decorators)
  - [Use cases](#use-cases)
  - [React Native](#react-native)
  - [Angular 2](#angular-2)
  @@ -234,6 +235,9 @@ If you want to enable Syntactic & Semantic TypeScript error reporting you can en
  ```
  ### Ignore coverage on decorators
  +
  +**Note:** This is an experimental feature, comes with no guarantees and could be removed if it causes more problems than it solves
  +
  If you want to ignore coverage on decorators you can enable this through `ignoreCoverageForDecorators` and `ignoreCoverageForAllDecorators` flags. If you enable the first option you have to add the `/* istanbul ignore decorator */` comment after the decorator. If you choose the second option all decorators will be ignored.
  ```json
  