Release 3.0.0 (dart-lang/markdown#339)

pkgs/markdown/CHANGELOG.md

diff --git a/pkgs/markdown/CHANGELOG.md b/pkgs/markdown/CHANGELOG.md
index 8ccb57b..f67c668 100644
--- a/pkgs/markdown/CHANGELOG.md
+++ b/pkgs/markdown/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 3.0.0-dev
+## 3.0.0
 
 * **Breaking change:** Remove `ListSyntax.removeLeadingEmptyLine`,
   `ListSyntax.removeTrailingEmptyLines`, `TableSyntax.parseAlignments`,

pkgs/markdown/lib/src/version.dart

diff --git a/pkgs/markdown/lib/src/version.dart b/pkgs/markdown/lib/src/version.dart
index 5dce1c2..0ed1620 100644
--- a/pkgs/markdown/lib/src/version.dart
+++ b/pkgs/markdown/lib/src/version.dart
@@ -1,2 +1,2 @@
 // Generated code. Do not modify.
-const packageVersion = '3.0.0-dev';
+const packageVersion = '3.0.0';

pkgs/markdown/pubspec.yaml

diff --git a/pkgs/markdown/pubspec.yaml b/pkgs/markdown/pubspec.yaml
index 4a0972b..30d6422 100644
--- a/pkgs/markdown/pubspec.yaml
+++ b/pkgs/markdown/pubspec.yaml
@@ -1,5 +1,5 @@
 name: markdown
-version: 3.0.0-dev
+version: 3.0.0
 
 description: A portable Markdown library written in Dart that can parse
  Markdown into HTML.