message: docs: add instructions for opting into latest Language Service
  PR Close
diff: @@ -4,6 +4,20 @@ The Angular Language Service provides code editors with a way to get completions
  hints, and navigation inside Angular templates.
  It works with external templates in separate HTML files, and also with in-line templates.
  +## Configuring compiler options for the Angular Language Service
  +
  +To enable the latest Language Service features, set the `strictTemplates` option in `tsconfig.json` by setting `strictTemplates` to `true,` as shown in the following example:
  +
  +<code-example language="json">
  +
  + "angularCompilerOptions": {
  + "strictTemplates": true
  + }
  +
  +</code-example>
  +
  +For more information, see the [Angular compiler options](guide/angular-compiler-options) guide.
  +
  ## Features
  Your editor autodetects that you are opening an Angular file.
  