docs(zone.js): update DEVELOPER.md for changelog instruction (#32016)

PR Close #32016
2019-08-09 09:27:18 +09:00 · 2019-08-09 09:27:18 +09:00 · ebcf79d7f3
commit ebcf79d7f3
parent a91a55a6d2
1 changed files with 1 additions and 1 deletions
--- a/packages/zone.js/DEVELOPER.md
+++ b/packages/zone.js/DEVELOPER.md
@ -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
 ```