Update pubspec.yaml (#123)

diff --git a/pubspec.yaml b/pubspec.yaml
index def12cb..d4ed6b9 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,7 +1,7 @@
 name: package_config
 version: 2.0.3-dev
 description: Support for reading and writing Dart Package Configuration files.
-homepage: https://github.com/dart-lang/package_config
+repository: https://github.com/dart-lang/package_config
 
 environment:
   sdk: '>=2.12.0 <3.0.0'