docs: fix typo in dev environment guide (#580)

jesselpalmer · jelbourn · commit e1ff20220f8f · 2016-05-31T10:23:18.000-07:00
diff --git a/DEV_ENVIRONMENT.md b/DEV_ENVIRONMENT.md
@@ -35,7 +35,7 @@ webdriver-manager update
 
 When running the tests:
 
-1.  Spin up a local server with `ng-serve`. 
+1.  Spin up a local server with `ng serve`. 
 
 2.  Run tests with:
 
