Bump to 2.1.6 (dart-lang/markdown#297)

pkgs/markdown/CHANGELOG.md

diff --git a/pkgs/markdown/CHANGELOG.md b/pkgs/markdown/CHANGELOG.md
index e1572c2..0c447cd 100644
--- a/pkgs/markdown/CHANGELOG.md
+++ b/pkgs/markdown/CHANGELOG.md
@@ -1,3 +1,10 @@
+## 2.1.6
+
+* Fix for custom link resolvers
+  ([#295](https://github.com/dart-lang/markdown/issues/295)).
+* Add missing HTML 5 block-level items
+  ([#294](https://github.com/dart-lang/markdown/pull/294)).
+
 ## 2.1.5
 
 * Overhaul table row parsing. This does not have many consequences, except that

pkgs/markdown/lib/src/version.dart

diff --git a/pkgs/markdown/lib/src/version.dart b/pkgs/markdown/lib/src/version.dart
index a0aa423..88c2f9f 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 = '2.1.5';
+const packageVersion = '2.1.6';

pkgs/markdown/pubspec.yaml

diff --git a/pkgs/markdown/pubspec.yaml b/pkgs/markdown/pubspec.yaml
index 71db62a..e272a32 100644
--- a/pkgs/markdown/pubspec.yaml
+++ b/pkgs/markdown/pubspec.yaml
@@ -1,5 +1,5 @@
 name: markdown
-version: 2.1.5
+version: 2.1.6
 
 description: A library for converting markdown to HTML.
 homepage: https://github.com/dart-lang/markdown