message: docs(zone.js): update DEVELOPER.md for changelog instruction
  PR Close
diff: @@ -85,7 +85,7 @@ For example, the current version is `0.9.1`, and we want to release a new versio
  - create a new tag in `angular` repo. The `tag` must be `zone.js-<version>`, so in this example we need to create the tag `zone.js-0.10.0`.
  ```
  -$ TAG=zone.js-0.10.0
  +$ export TAG=zone.js-0.10.0
  $ git tag $TAG
  ```
  