fix README (knative#1180)

Replace pubspec field `private` with `publish_to`. [ref](https://www.dartlang.org/tools/pub/pubspec#publish_to) See @52f464f.
samodell · Apr 23, 2019 · 407be15 · 407be15
1 parent 2cc4ce6
commit 407be15
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/community/samples/serving/helloworld-dart/README.md b/community/samples/serving/helloworld-dart/README.md
@@ -25,7 +25,7 @@ be created using the following instructions.
 
    ```yaml
    name: hello_world_dart
-   private: True # let's not accidentally publish this to pub.dartlang.org
+   publish_to: none # let's not accidentally publish this to pub.dartlang.org
    description: >-
      Hello world server example in dart.
    dependencies: