message: docs(zone.js): update zone.js readme for the bundle format
  There is a typo in zone.js bundle format breaking change part,
  the correct version should be `0.11.1` not `0.11.11`, and add
  more clear text to explain the new bundle format directory structure.
  PR Close
diff: @@ -21,27 +21,33 @@ Read up on [Zone Primer](https://docs.google.com/document/d/1F5Ug0jcrm031vhSMJEO
  Prior to `v0.11.1`, Zone.js provided two distribution bundle formats in the `dist` folder.
  They were (1) `ES5` bundle distributed as `zone.js` and (2) `ES2015` bundle distributed as `zone-evergreen.js`.
  -These bundles are used for Angular's differential-loading mechanism.
  +Both of these bundles were in `UMD` format, and are used for Angular's differential-loading mechanism.
  -Prior to `v0.11.11` the following code
  +Starting with `v0.11.1`, Zone.js follows the [Angular Package Format](https://docs.google.com/document/d/1CZC2rcpxffTDfRDs6p1cfbmKNLA6x5O-NtkJglDaBVs). Therefor the new Zone.js file layout is:
  +
  +- `bundles`: `ES5` bundle in `UMD` format.
  +- `fesm2015`: `ES5` bundle in `ESM` format.
  +- `dist`: `ES5` bundle in `UMD` format. This directory is present to keep backward compatibility.
  +
  +If you are using `Angular CLI`, the `polyfills.ts` file will contain:
  ```
  -import 'zone.js';
  +import 'zone.js/dist/zone';
  ```
  -would load the `ES5` bundle from `dist/zone.js`.
  -Starting with `v0.11.1`, Zone.js follows the [Angular Package Format](https://docs.google.com/document/d/1CZC2rcpxffTDfRDs6p1cfbmKNLA6x5O-NtkJglDaBVs), so the folder structure of the Zone.js bundles is updated to match `Angular Package Format`.
  -So the same code
  +Starting with Zone.js `v0.11.1+` the import changes to:
  ```
  import 'zone.js';
  ```
  -now loads the `ES2015` bundle instead.
  +
  +Prior to `v0.11.1` the import would load the `ES5` bundle in `UMD` format from `dist/zone.js`.
  +Starting with `v0.11.1` the import loads the `ES2015` bundle in `ESM` format instead.
  This is a breaking change for legacy browsers such as `IE11`.
  For backwards compatibility `zone.js` continues to distribute the same bundles under `dist`.
  -To restore the old behavior change the `polyfills.ts` generated by `Angular CLI` to import like so:
  +To restore the old behavior import from the `dist` directory instead like so:
  ```
  import 'zone.js/dist/zone';
  