Stable null safe v0.15.0 (#154)

CHANGELOG.md

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3ab6de0..b5c2c93 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 0.15.0-nullsafety.0
+## 0.15.0
 
 - Migrate to null safety.
 - Drop `lastPhase`, `beforeRcDataPhase`, and `container` fields from

pubspec.yaml

diff --git a/pubspec.yaml b/pubspec.yaml
index 7300645..f5f932a 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,17 +1,17 @@
 name: html
-version: 0.15.0-nullsafety.0
+version: 0.15.0
 
 description: APIs for parsing and manipulating HTML content outside the browser.
-homepage: https://github.com/dart-lang/html
+repository: https://github.com/dart-lang/html
 
 environment:
   sdk: ">=2.12.0-0 <3.0.0"
 
 dependencies:
-  csslib: ^0.17.0-nullsafety
-  source_span: ^1.8.0-nullsafety
+  csslib: ^0.17.0
+  source_span: ^1.8.0
 
 dev_dependencies:
-  path: ^1.8.0-nullsafety
-  pedantic: ^1.10.0-nullsafety
-  test: ^1.16.0-nullsafety
+  path: ^1.8.0
+  pedantic: ^1.10.0
+  test: ^1.16.0