message: docs: fix bad anchors
  PR Close
diff: @@ -394,7 +394,7 @@ the subfolder is `my/app/` and you should add `<base href="/my/app/">` to the se
  When the `base` tag is mis-configured, the app fails to load and the browser console displays `404 - Not Found` errors
  for the missing files. Look at where it _tried_ to find those files and adjust the base tag appropriately.
  -{@ differential-loading}
  +{@a differential-loading}
  ## Differential Loading
  @@ -546,7 +546,7 @@ To explicitly disable differential loading:
  - Enable the `dead` or `IE` browsers in the `browserslist` config file by removing the `not` keyword in front of them.
  - Set the `target` in the `compilerOptions` to `es5`.
  -{@ test-and-serve}
  +{@a test-and-serve}
  ## Local development in older browsers
  @@ -556,7 +556,7 @@ The `ng serve`, `ng test`, and `ng e2e` commands, however, generate a single ES2
  If you want to run ES5 code during development, you could disable differential loading completely.
  To maintain the benefits of differential loading, however, a better option is to define multiple configurations for `ng serve`, `ng e2e`, and `ng test`.
  -{@ differential-serve}
  +{@a differential-serve}
  ### Configuring serve for ES5
  @@ -616,7 +616,7 @@ ng serve --configuration es5
  </code-example>
  -{@ differential-test}
  +{@a differential-test}
  ### Configuring the test command
  