Update pubspec.yaml (#64)

- update the pubspec value for the repository field
diff --git a/CHANGELOG.md b/CHANGELOG.md
index cb264be..1e9e0a4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.2.1-dev
+
+* Update the value of the pubspec `repository` field.
+
 ## 1.2.0
 
 * Fix `Characters.where` which unnecessarily did the iteration and test twice.
diff --git a/pubspec.yaml b/pubspec.yaml
index 065c191..977e4a7 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,11 +1,11 @@
 name: characters
-version: 1.2.0
+version: 1.2.1-dev
 description: String replacement with operations that are Unicode/grapheme cluster aware.
-repository: https://www.github.com/dart-lang/characters
+repository: https://github.com/dart-lang/characters
 
 environment:
   sdk: ">=2.12.0 <3.0.0"
 
 dev_dependencies:
-  test: ^1.16.0
   lints: ^1.0.0
+  test: ^1.16.0